what is definition of epoch ?

Answers

Answer 1

In geology, an epoch is a unit of time that is used to divide geological periods into smaller intervals. An epoch is typically longer than an age, but shorter than a period.

The current geologic time scale divides the Cenozoic Era, which began about 66 million years ago and continues to the present day, into three epochs: the Paleogene, Neogene, and Quaternary epochs. Each epoch is further divided into smaller stages or ages, which represent even more specific intervals of time.

The classification of epochs is based on a variety of geological and biological criteria, such as changes in climate, the appearance of new species, or major geological events like volcanic eruptions or asteroid impacts. The study of epochs and other units of geological time is important in understanding the history of the Earth and its complex systems, as well as predicting future changes and events.

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Related Questions

where does the deep-ocean basin begin along a passive continental margin?

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The deep-ocean basin typically begins at the edge of the continental shelf along a passive continental margin. A passive continental margin is a margin that is not associated with a tectonic plate boundary or volcanic activity.

The continental shelf is a shallow, relatively flat area that extends from the shore out to sea and is part of the continental crust. It typically has a depth of around 200 meters (656 feet) and is rich in marine life. Beyond the continental shelf, the seafloor begins to slope more steeply, forming the continental slope.

At the base of the continental slope, the seafloor drops off sharply and forms the continental rise, which is a gentle slope that leads to the abyssal plain. The abyssal plain is the flat, featureless region of the deep ocean basin that covers much of the Earth's surface. It typically has a depth of around 4,000-6,000 meters (13,123-19,685 feet) and is covered by a layer of fine sediment.

The transition from the continental shelf to the abyssal plain is known as the shelf break, and it is typically marked by a change in slope angle and the presence of submarine canyons, which are deep, V-shaped valleys that cut through the continental shelf and slope.

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A lava tube forms because the lava in the ________ part of the flow remains fluid, while the exposed surface ________ and hardens.A) Interiorer; Cool OffB) Inner; Warm UpC) Outer; Cools OffD) Outer; Warm Up

Answers

Option C: A lava tube develops as a result of the lava in the flow's outer region staying fluid as the exposed surface cools off and solidifies.

A lava tube is a naturally occurring passageway created by lava that flows beneath the lava flow's hardened surface.

The outermost layer of the lava cools and hardens as it flows downhill because it is exposed to the colder air, generating a solid crust or shell. The lava inside the flow, however, is still hot and fluid, allowing it to continue flowing downward.

The hollow, cylindrical structure that results from the cooling and solidification of the flowing, fluid lava can be any size, from tiny tunnels to enormous caves

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Fill The Blank! the entire life cycle of an extra-tropical cyclone lasts _____.

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The full life cycle of an extra-tropical cyclone typically lasts a few days, commonly between 3 and 10 days, depending on a variety of factors such as the storm's strength, location, and atmospheric characteristics.

The beginning of the life cycle of an extra-tropical cyclone often involves the development of an atmospheric disturbance, which may be caused by a variety of factors including changes in temperature, height, or moisture. When the disturbance expands and strengthens, it may develop into a cyclonic structure with a low-pressure center and spinning winds.

As the storm develops, its winds and precipitation might grow stronger, and as it moves farther south, its low-pressure center could become deeper.

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what is similar about pakistan's and bangladesh's natural resources?

Answers

Explanation:

Its 2 agrarian country, but Afganistan doesnt have way to sea unlike Bungladesh, they growing agrarian products

babylon of hammurabi was a territorial state because

Answers

Babylon of Hammurabi was a territorial state because it was a political entity with defined borders and a centralized government that controlled a specific geographic area.

Under Hammurabi's rule, Babylon became the dominant city-state in Mesopotamia, and Hammurabi expanded his territory through military conquests. He established a code of laws, known as the Code of Hammurabi, which applied to all the people living within his territory. This code was designed to regulate all aspects of life, from commerce and agriculture to family relationships and criminal law.

Babylon of Hammurabi was also a territorial state because it had a capital city, Babylon, which served as the center of political, economic, and cultural life. The city was home to important government institutions, such as the royal palace and the temple of Marduk, as well as a bustling marketplace and a diverse population of artisans, traders, and laborers.

Overall, Babylon of Hammurabi was a territorial state because it was a centralized political entity with defined borders, a powerful government, and a distinctive cultural identity that set it apart from other states in the region.

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What was the Aztecs empire known for?

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Answer:

The Aztecs were famous for their agriculture, land, art, and architecture. They developed writing skills, a calendar system and also built temples and places of worship. They were also known for being fierce and unforgiving. To please their gods they sacrificed humans!

Explanation:

Which three branches of science are most important in our study of life in the universe?
a. planetary science, biology, and mathematics
b. physics, mathematics, and astronomy
c. astronomy, planetary science, and biology
d. biology, mathematics, and physics

Answers

The answer is C.
c. astronomy, planetary science, and biology

I need the answer to this

Answers

Answer:

answer what?

Explanation:

answer to what lol???

Which of the following perceptual concepts makes Italy's Leaning Tower of Pisa so intriguing to people?
a. landmark discrimination
b. oblique effect
c. Bayesian inference
d. good continuation

Answers

The campanile, or freestanding bell tower, of Pisa Cathedral is known as the Leaning Tower of Pisa (Italian: torre pendente di Pisa), or simply the Tower of Pisa (torre di Pisa [torre di piza; pisa.

It is renowned for having a lean of about four degrees, which was caused by an unstable foundation. The tower is one of three buildings in the Piazza del Duomo in Pisa, which also contains the cathedral and the Pisa Baptistry.

The tower rises to a height of 56.67 meters (185 ft 11 in) on the high side and 55.86 meters (183 ft 3 in) above the ground on the low side. 2.44 m is the width of the walls at their base (8 ft 0 in).

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what is define foliated rocks?

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Foliated rocks are a type of metamorphic rock that is characterized by having visible layers or bands of minerals, which are usually aligned parallel to each other.

This texture is the result of the rock being subjected to intense heat and pressure, causing the minerals within it to re-crystallize and become arranged in a specific orientation.

The alignment of the minerals in foliated rocks can give them a distinct texture and appearance, which can be used to identify and classify them.

Some common types of foliated rocks include slate, schist, and gneiss. Foliated rocks can be found in a variety of settings, including mountain ranges, deep within the earth's crust, and along fault lines. They are important in geology as they provide clues to the history and processes of the earth's crust.

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1. Describe one important natural resource found in Russia. In your short response, include why the natural resource is important and where it can be found. (5 points)









2. Describe when the first human settlements began in Russia. In your short response, also note which people settled there. (5 points)









3. What caused the end of the Russian monarchy, and when did it occur? (5 points)









4. When was the Soviet Union formed? Who owned all the land and industry in Russia afterward? (5 points)









5. What problems do people living in urban areas of Russia face today? What problems do people living in rural areas of the country face? (5 points)









6. In your own words, describe one issue or challenge facing Russia today. (5 points)

Answers

Russia is home to the second-biggest coal reserves, the eighth-largest oil reserves, and the largest natural gas reserves in the planet. It is among the biggest producers and exporters of natural gas, as well as the second- and third-largest producer of crude oil.

What are the two most crucial resources for Russia?

Russia has 48 billion cubic meters of gas and 17 billion tons of oil. The world's largest producer of dry natural gas, after the US, is Russia, which also holds the top rank for global gas reserves.

How many resources does Russia have in nature?

Natural resources of Russia are thought to be worth $75 trillion. They consist of rare earth metals, natural gas, coal, and crude oil. It came in third place globally in 2021 for industrial diamond output.

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You water three sunflowers plants with salt water each plant receive a different concentration of salt Solutions after a two-week period the height is measured

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You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plant receives pure water. After a two- week period, the height is measured.

What is Salt solutions ?

By adding salt and water, acid and base can be combined without causing damage to either. The combination of an anion from an acid and a base results in salt. In most cases, the salts do not alter the color of litmus. e.g. Common salt, or NaCl, is a substance used in food.

                                     An illustration of an aqueous solution is the salt solution. It indicates that salt is dissolved in water, and the dissolved substance is referred to as a solute.

What is the purpose of salt solution?

Physiological or isotonic saline are other names for saline solution, which is what it is typically known as. Saline is used extensively in medicine. In addition to treating dehydration, it is used to clean wounds and cleanse sinuses. Both topically and intravenously can be utilized with it.

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where is the highest elevation in central asia

Answers

Answer:

Pamir Mountains.

Explanation:

I know this one.

What depends most on water stored in Lake Nasser?

Answers

Water from Lake Nasser is mostly used for perennial irrigation.

What resources does the Nile river provide?

The Nile is only a few kilometers away from where 95% of Egyptians reside today. To irrigate farmland and sustain towns, canals transport water from the Nile. Agriculture and fishing are supported by the Nile. Throughout the ages, the Nile has also been a crucial conduit for travel.

Temperatures will keep rising as a result of climate change. This results in more evaporation of the water that has been stored. Now, the Aswan Dam-abutting Lake Nasser loses 12% of its volume each year to evaporation, or 16 billion cubic meters of water yearly.

A perennial irrigation system ensures that crops receive continuous and consistent water delivery throughout the crop period according to the needs of the crop. This technique uses a weir or a reservoir as the starting point for a canal distribution system that supplies water to the crops.

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what is the impact of the evolutionary mechanism?

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The evolutionary mechanism has a profound impact on all living organisms on Earth.

It refers to the natural processes that lead to the diversity of life and the adaptation of living organisms to their environments over time. The mechanisms of evolution include mutation, natural selection, genetic drift, gene flow, and speciation.One of the primary impacts of the evolutionary mechanism is the diversification of life on Earth. Over billions of years, organisms have evolved to occupy virtually every available niche in the environment, from the deepest oceans to the highest mountains, from the Arctic tundra to the tropical rainforests.Evolution also plays a critical role in the development of complex traits and adaptations, such as flight in birds, camouflage in insects, and intelligence in primates. These adaptations are the result of natural selection, in which organisms with traits that confer a survival or reproductive advantage are more likely to pass on those traits to their offspring.

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No stars are expected with masses greater than 150 times our Sun because
A) they would shine exclusively at X-ray wavelengths and would be difficult to detect.
B) they would generate so much power that they would blow themselves apart.
C) they would be too massive for hydrogen fusion to occur in their cores.
D) molecular clouds do not have enough material to form such massive stars.
E) they would fragment into binary stars because of their rapid rotation.

Answers

No stars are expected with masses greater than 150 times our Sun because B) they would generate so much power that they would blow themselves apart.

Stars with masses greater than 150 times our Sun are known as very massive stars, and their powerful radiation can cause them to lose mass at an extremely rapid rate. This means that they have a relatively short lifespan, and they can explode as supernovae or collapse directly into black holes. Therefore, they are not expected to exist for very long, and this is why they are difficult to detect. Their extreme luminosity and short lifespan also make them important objects of study in astrophysics.

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as of 2017, what is the approximate co2 level in earth’s atmosphere?

Answers

As of 2017, there were around 405 parts per million of CO2 in the Earth's atmosphere (ppm).

This is based on information gathered by Hawaii's Mauna Loa Observatory, which has been tracking atmospheric CO2 concentrations since the late 1950s.

Some of the most precise and trustworthy observations of atmospheric CO2 levels in the world are provided by the observatory, which is situated on an isolated mountain summit away from significant sources of pollution.

Scientists and decision-makers are very concerned about the present CO2 level since it is much greater than pre-industrial levels and is causing global climate change.

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what is the earth’s coldest continually inhabited settlement?

Answers

The coldest continually inhabited settlement on Earth is Oymyakon, a village in the Sakha Republic (Yakutia) in Russia.

The coldest continually inhabited settlement on Earth is the town of Oymyakon in Russia, located in the Sakha Republic region of the Russian Far East. With temperatures that can plunge to as low as -71.2°C in winter,

Oymyakon is widely recognized as one of the coldest permanently inhabited places on Earth. The town is home to around 500 people, who must battle the harsh winters and often find themselves without electricity or running water during the coldest months of the year.

In the winter, the “pole of cold” Oymyakon experiences days that can last for weeks without any sunlight, and temperatures that often remain consistently below -50°C. In 1933, the town was officially recognized as the coldest inhabited place on Earth with a temperature of -67.7°C. The town is not without its challenges.

However, and the extreme cold has forced residents to make various adaptations to their lifestyle, including building their homes from materials that are better suited to withstand the cold.

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what is the reason that jupiter radiates more energy into space than it receives from the sun

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Jupiter's internal heat source causes it to emit more energy into space than it does from the sun. As a gas giant, Jupiter has a hydrogen and helium-rich atmosphere.

Hydrogen atoms compress and fuse together at the planet's core under the intense pressure and heat, releasing energy in the form of heat and light. On a smaller scale, this process is comparable to the fusion that fuels the sun.

Jupiter's internal heat source causes it to radiate more energy into space than it takes in from the sun. Telescopes on Earth and in space can pick up the infrared radiation that is emitted as a result of this energy.  

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Define the term:​
Built attraction​

Answers

Answer:

places which have been built specifically to attract tourist

Answer: I hope this helps you out

Explanation:

The term “built attraction” refers to the process of gradually developing an emotional or physical attraction to someone or something over time. This can happen through repeated interactions, shared experiences, and the building of trust and familiarity. In a romantic context, building attraction might involve getting to know someone’s personality, interests, and values, while in a business context it might involve building trust and rapport with a potential client or partner.

tourist experiences among unique wildlife and ecosystems. ecotourism. varieties developed by combining genetic material from other populations. hybrids.

Answers

While ecotourism may involve experiencing and observing unique wildlife and ecosystems, it does not involve creating hybrids. Conversely, hybrids may be created through various means.

But this does not necessarily have any connection to ecotourism. These are two separate concepts and are not directly related to each other.

Ecotourism: Ecotourism refers to a type of tourism that focuses on experiencing and preserving unique wildlife and ecosystems in their natural state. It is a sustainable form of tourism that seeks to minimize negative impacts on the environment and promote conservation efforts. Ecotourism activities may include wildlife watching, hiking, kayaking, or visiting natural landmarks and protected areas.

Hybrids: Hybrids are organisms that are the result of combining genetic material from two different populations or species. This can occur naturally through crossbreeding, or it can be intentionally engineered by humans. Hybrids can exhibit a wide range of physical and behavioral traits, and may have unique advantages or disadvantages compared to their parent populations.

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this process uses chlorine, ultraviolet radiation, or ozone as part of the disinfection of wastewater. What is that process ?

Answers

The procedure outlined in the query is referred to as wastewater disinfection, and it is a vital stage in the treatment of wastewater before it can be safely discharged into the environment or reused for particular reasons.

In wastewater treatment disinfection techniques frequently utilised include chlorine, ultraviolet (UV) radiation, and ozone. Waterborne viruses and bacteria can be successfully eliminated by the potent disinfectant chlorine. In order to prevent germs from reproducing, UV radiation damages their DNA using high-energy light. Ozone is a potent oxidizer that may degrade chemical substances and eliminate bacteria and viruses. The best method or combination of methods for a given situation will rely on the properties of the wastewater being treated, the level of disinfection sought, and any applicable environmental and regulatory requirements. Each of these disinfection techniques has advantages and limits.

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where is isle of mann ?

Answers

Between Great Britain and Ireland in the Irish Sea is the self-governing British Crown dependency known as the Isle of Man.

It is a possession of the British Crown, not a part of the United Kingdom, and has its own legislative body and executive branch. The island has a total area of about 221 square miles (572 square kilometers), is roughly 33 miles (53 km) long, and is 13 miles (21 km) wide at its widest point. The Isle of Man has a population of about 85,000, and Douglas is its capital.

The words aisle and isle sound alike but have different spellings and meanings.

An isle is an island or a piece of land surrounded by water, whereas an aisle is a passageway like the one in a movie theater.

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A moving, glowing cloud of hot gases and volcanic pieces:A. was named with a Hawaiian term because it's so common there.B. is called a pyroclastic flow or nuée ardent.C. is so rare, none occurred last century.D. is associated with shield volcanoes.

Answers

A moving as well as glowing cloud of hot gases and the volcanic pieces is called a nuée ardent or a pyroclastic flow.

The correct option is option B.

A pyroclastic flow is basically a fast-moving current consisting of hot gas as well as volcanic matter which is collectively known as tephra, which happens to flows along the ground and away from a volcano at the average speeds of 100 km/h but it is also capable of reaching speeds as fast as 700 km/h.

Pyroclastic flows are considered as the most deadly of all the volcanic hazards and they are produced basically as a result of certain type of explosive eruptions.

Hence, the correct option is B.

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define density in terms of geography

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Density in geography is a measure of the number of people or objects in a given area. It is usually expressed as the number of people or objects per unit area, such as people per square kilometer or objects per square mile.
Density is the number of things—which could be people, animals, plants, or objects—in a certain area. To calculate density, you divide the number of objects by the measurement of the area. The population density of a country is the number of people in that country divided by the area in square kilometers or miles.

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hope it helps you :)

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what is the relationship between the mediterranean sea and the atlantic ocean?

Answers

The Strait of Gibraltar, a confined waterway situated between Spain and Morocco, connects the Atlantic Ocean with the Mediterranean Sea, two separate bodies of water.

The Strait of Gibraltar, which connects the Mediterranean Sea to the Atlantic Ocean as the only natural route, is only around 14 km (8.7 miles) wide at its narrowest point.

The Atlantic Ocean is one of the world's major oceans, encompassing over 20% of the Earth's area, whereas the Mediterranean Sea is a nearly landlocked sea bounded by Europe, Asia, and Africa.

Maintaining the circulation of water in the world's oceans depends on the interchange of water between the Mediterranean Sea and the Atlantic Ocean.

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what happens to the access nutrients within the soil?

Answers

Nutrients in soil can be taken up by plant roots and used for growth, or they can undergo various chemical and biological transformations within the soil.

When plants absorb nutrients, they use them to build tissues and carry out metabolic processes. Any excess nutrients that are not immediately needed by the plant may be stored in the plant's tissues or released back into the soil.Nutrients in soil can also undergo chemical reactions such as oxidation, reduction, and complexation, which can affect their availability to plants. For example, some nutrients may become bound to soil particles and become less available to plants.Biological processes within the soil can also affect nutrient availability. Soil microorganisms, such as bacteria and fungi, can break down organic matter and release nutrients for plant uptake. Nitrogen-fixing bacteria can also convert atmospheric nitrogen into a form that plants can use.

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what is meant by the term minerals?

Answers

Answer:

a solid, naturally occurring inorganic substance:

"it identifies the mineral or compound present"

What were the 3 main points of the Treaty of Paris 1763?

Answers

Answer:

1. All French territory on the mainland of North America was lost

2. The British received Quebec and the Ohio Valley

3. The port of New Orleans and the Louisiana Territory west of the Mississippi were ceded to Spain for their efforts as a British ally.

Explanation:

Answer:

The terms of the Treaty of Paris were harsh to losing France. All French territory on the mainland of North America was lost. The British received Quebec and the Ohio Valley. The port of New Orleans and the Louisiana Territory west of the Mississippi were ceded to Spain for their efforts as a British ally.

Explanation:

Why do you think India is called the ‘ land of geographical diversity’?

Answers

Answer: India is called the 'land of diversity' because we have various types of food, speak different languages, celebrate different festivals, and practise different religions and traditions.

Explanation: silly

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