The Sun spends six months each year above the celestial equator (from 21 March to 20 September) and six months per year below it (from 20 September to 21 March). The seasons are brought on by this 23.5° tilt of the Earth's spin axis with regard to the ecliptic plane.
When is the Sun at its zenith in the sky?The longest day of the year occurs in June, on the summer solstice, when the Earth is tilted toward the Sun and the Sun is at its highest position in the sky.
On December 21st, what is the Sun directly above?The Sun never directly overheads an observer in the United States. On or around December 21, the first day of winter, the opposite occurs (Winter Solstice). At the Tropic of Capricorn (23.5° S latitude), the Sun is overhead. The South Pole is completely illuminated, whilst the North Pole suffers complete darkness.
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On the grid below, draw a median line bar graph to illustrate the net migration rate for the six countries. Use a scale of one unit for every 2/1000 net migration
this is all the information given
Some useful information to show you how to draw a median line bar graph is given below:
How to create the median line bar graph?To create a median line bar graph for the net migration rate of the six countries, you would first need to create a vertical axis with a scale of one unit for every 2/1000 net migration. This means that each unit on the scale represents 2/1000 or 0.2% net migration rate.
Next, you would need to draw a horizontal line across the entire graph, representing the median net migration rate. The median is the middle value of the net migration rates when they are arranged in numerical order.
Finally, for each country, you would draw a vertical bar on the graph, with the height of the bar representing the country's net migration rate. The bars should be centered on the country name or label on the horizontal axis.
The bars should be colored differently for each country to make them easily distinguishable. You may also add a legend to indicate which color corresponds to which country.
Overall, the median line bar graph allows you to compare the net migration rates of different countries and see how they relate to the median net migration rate.
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Variation in life expectancy among developed regions is especially wide; life expectancy is only in the low sixties in Europe Africa, but is as high as high eighties in Japan and Canada.
A. True
B. False
Choice B, False. Life expectancy varies greatly throughout developed regions; although it is only in the mid-60s in Europe and Africa, it may reach as high as the early 80s in Japan and Canada.
This assertion is untrue. Data from the World Health Organization (WHO) from 2020 show that in general, life expectancy is greater now in Europe and Africa than it was in the 1960s.
Depending on the nation, the average life expectancy in Europe is between the mid-seventies and the mid-eighties, but in Africa, it is between the mid-fifties and the mid-seventies.
Canada and Japan, on the other hand, both have long life spans, with Canada having the greatest life expectancy in the world at over 84 years.
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Which environment usually experiences the most extreme seasonal variations?
A. tropical forest
B. The open ocean.
C. Boreal Forest
D. Tidal pool.
Answer:
Tidal Pools
Explanation:
Tidal pools usually experience the most extreme seasonal variations. They are located in the intertidal zone, which is the area of the shore that is covered and uncovered by the tides. As a result, the organisms that live in tidal pools are exposed to extreme variations in temperature, salinity, and other environmental factors as the tides come in and go out. This can make life challenging for the organisms that live there and can lead to high levels of seasonal variability in the tidal pool ecosystem.
The 1985 nevado del ruiz eruption was made particularly deadly due to the presence of blank______, since the eruption itself was rather minor.
"The 1985 nevado del ruiz eruption was made particularly deadly due to the presence of an ice cap at the volcano's peak since the eruption itself was rather minor."
The lahars travelled over 60 miles in just four hours after the eruption, killing more than 23,000 people, injuring over 5,000, and destroying more than 5,000 houses. The town of Armero, where there were 28,700 residents, was the hardest affected, with 75 percent of them dying.
The Armero Tragedy, also known as the Nevado del Ruiz Volcanic Eruption, is thought to be Colombia's worst natural calamity and resulted in the deadliest lahar ever seen.
In gullies, the lahars accelerated and engulfed the village of Armero, claiming the lives of over 20,000 of its nearly 29,000 residents.
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what type of parent body must carbonaceous chondrite meteorites come from?
The parent body from which the carbonaceous chondrite meteorites come from diverse asteroids.
A chondrite is basically a stony as well as a non-metallic meteorite which has not been modified by either differentiation or the melting of the parent body. They are basically formed when the different types of dust as well as the small grains which are present in the early Solar System accreted in order to form the primitive asteroids.
The chondritic meteorites basically comprise of about 8 known groups as well as some of the ungrouped meteorites. They happen to include some of the most primitive known meteorites.
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diagram a shows two depictions of the fundamental building block of silicate minerals, the most abundant minerals. what is it called?
the most common mineral, the silica tetrahedron, is shown in two representations of the essential building component of silicate minerals.
What is meant by abundant minerals?Bridgmanite, sometimes called Silicate-Perovskite, is the mineral that is most frequently found in absolute. An estimated 38% of the earth's volume is made up of it, which is made up of silicon dioxide, iron, and magnesium. Yet, the mantle of the earth contains this mineral, which is only stable under conditions of great pressure and temperature. It is hardly present on the surface of the planet.
A meteorite thought to be the remains of a fractured planetoid that fell to Earth in 1879 had samples that were originally discovered, but it wasn't until 2014 that they were classified as minerals.
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what is a steep cliff or slope between a higher and lower land surface?
Answer:
Escarpment
Explanation:
What is the natural (i.e., pre-industrial, or pre-anthropogenic) range of CO2 in our atmosphere?
The natural(i.e., pre-industrial, or pre-anthropogenic) range of CO2 in our atmosphere is 180-280 ppm.
The range of CO2 is the amount of carbon dioxide present in the environment, Carbon dioxide is a gas that plays a integral part in environmental pollution, greenhouse effect, carbon cycle, photosynthesis and oceanic carbon cycle. The level of carbon dioxide increases due to human activities such as industrialization, deforestation, mining and other such activities. CO2 absorbs and emits infrared radiation at wavelengths of 4.26 μm which gets trapped in the earth atmosphere increasing the temperature.
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3. explain how a population would be affected when the birthrate is significantly higher than the death rate and there are no changes due to immigration or emigration.
A population will undergo natural expansion or population growth over time when the birth rate is much higher than the mortality rate and there are no changes brought on by immigration or emigration.
The natural increase rate, which is a gauge of population expansion, is the difference between the birth and death rates.
The population will grow because more people are added to the population each year as long as more people are born than die.
When the population grows, there may be greater demand for resources like food, water, and shelter, which might strain the environment and infrastructure.
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what keeps asteroids moving through space for billions of years?
what were the two largest cities in the indus valley civilization
Answer:
Harappa and Mohenjo-daro
Explanation:
np
what natural processes are involved in forming caves
The natural process which are involves in the formation of the caves are weathering and erosion.
The process of formation as well as the development of caves is basically known as speleogenesis. This process can basically occur over the duration of millions of years. Caves can range largely in terms of their size, and are also formed through a number of geological processes.
The caves are basically formed by the process of dissolving of the rock. The processes which are involved in this are both chemical corrosion and weather as well as physical erosion. Caves are basically formed as a result of the dissolution of limestone. Rainwater ends up picking up carbon dioxide and as it percolates through the soil, it forms a a weak acid which dissolves out the limestone some of which happens to become enlarged enough in order to form caves.
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what process happens again and again in the rock cycle
The rock cycle is a continuous process that describes how rocks are transformed from one type to another over time. The rock cycle involves three main types of rock: igneous, sedimentary, and metamorphic.
The following process occurs repeatedly during the rock cycle:
Weathering and erosion: The disintegration and erosion of existing rocks occurs as a result of exposure to weather, water, and other natural processes.
The eroded elements settle and are deposited in a new area, where they are crushed and cemented together to form sedimentary rocks.
Heat, pressure, and chemical reactions can convert existing sedimentary or igneous rocks into metamorphic rocks.
Melting and solidification: When exposed to extreme temperatures and pressures, rocks can melt and create magma. Igneous rocks are formed when magma cools and solidifies
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47) When several EPSPs arrive at the axon hillock from different dendritic locations, depolarizing the postsynaptic cell to threshold for an action potential, this is an example of
A) temporal summation.
B) spatial summation.
C) tetanus.
D) the refractory state.
E) an action potential with an abnormally high peak of depolarization.
When several EPSPs arrive at the axon hillock from different dendritic locations,postsynaptic cell to threshold for an action potential, this is an example ofB) spatial summation.
Spatial summation occurs when several excitatory postsynaptic potentials (EPSPs) arrive at the axon hillock simultaneously from different dendritic locations, depolarizing the postsynaptic cell to threshold for an action potential.The EPSPs are generated by the binding of neurotransmitters to receptors on the postsynaptic membrane, which opens ion channels and allows positive ions to flow into the cell, causing depolarization.If the depolarization is strong enough to reach the threshold potential, an action potential will be generated and propagated down the axon.Spatial summation allows the postsynaptic cell to integrate the inputs it receives from multiple synapses and determine whether or not to generate an action potential. It is one of the key mechanisms by which neurons process and transmit information in the brain.
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What is weathering and erosion example?
Answer:
Example of weathering: Wind and water cause small pieces of rock to break off at the side of a mountain. Weathering can occur due to chemical and mechanical processes. Erosion is the movement of particles away from their source. Example of erosion: Wind carries small pieces of rock away from the side of a mountain.
Explanation:
each of these photos shows an ancient structure used for astronomical purposes. which one is located in the united states?
Each of these pictures shows an ancient structure used for astronomical purposes. The Sun Dagger is located in the United States.
What do you mean by Astronomy?The study of everything in the universe beyond Earth's atmosphere is known as astronomy.
Ancient Greek astronomers' work is richly documented in the appeals of the Collection of Congress, largely because of the way the Greek tradition of research was continued by the work of Islamic astronomers and then into early modern European astronomy. This section offers a tour of some astronomical ideas and models from Ancient Greece as exemplified in items from the Library of Congress collections.
Therefore, The Sun Dagger is located in the United States.
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use figure 9-9 to answer the question. which type of agricultural practice is not found in or near tropical regions?
Commercial agriculture is mainly developed to produce goods for sale to food processing businesses and is typically practised in core nations outside of the tropics.
What is commercial agriculture?Commercial agriculture refers to the large-scale cultivation of crops for sale, often on large farms or plantations. This type of agriculture is designed to generate profit and is primarily geared towards meeting the demands of the global market. Commercial farming often employs advanced technology and modern farming techniques to maximize yields and minimize costs. It relies heavily on the use of fertilizers, pesticides, and other chemicals to increase productivity. This form of agriculture requires significant investment in infrastructure and machinery, and may involve intensive labor or mechanization. Commercial agriculture can have significant environmental impacts, including soil degradation, water pollution, and biodiversity loss, and can also contribute to social and economic inequality in rural communities.
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Why does Mars have an overall reddish color when we see its surface from afar? A.This is an optical illusion caused by the Earth's atmosphere scattering the colors of light differently B.Mars is completely cloudy, and its clouds are made of red materials C.The material of Mars' surface contains a lot of iron oxide, the same chemistry that makes rusting metals look reddish D.the giant volcanoes on Mars are constantly spewing out reddish lava E.The martians are constantly at war, and spilling a lot of red blood
Mars has an overall reddish color when we see it from afar because the surface of the Mars contains a lot of iron oxide which makes it look reddish.
The correct option is option c.
Mars is basically the fourth planet from the Sun in our solar system and it also the second-smallest planet present in the Solar System as it is larger only than the planet Mercury. Mars is categorized as a terrestrial planet and has a thin atmosphere as well as a crust which is primarily composed of elements which are similar to that in Earth's crust, as well as has a core which is made of iron and nickel.
It has a lot of iron oxide which is present in its surface and due to this, the surface of the Mars has a reddish color and Mars appears red when we see it from afar.
Hence, the correct option is c.
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the magnetic record in the rock on the ocean floor depends on when the rock was
The magnetic record in the rock on the ocean floor depends on when the rock was floored.
The process of paleomagnetism can be used to determine any rock's magnetic history.
The term "paleomagnetism" in refers to the magnetic polarisation that the minerals in a rock acquired at the time the rock was deposited or consolidated.
Paleomagnetism, broadly speaking, is the study of ancient pole locations and employs magnetization to extrapolate the direction and intensity of the geomagnetic field in the past.
Rocks with specific magnetic minerals can preserve information about the strength and direction of the Earth's magnetic field at the time of formation.
This record offers details on the geomagnetic field's earlier behaviour and the tectonic plates' earlier positions. This aids in identifying the rock's magnetic record.
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what is rwanda like today in
Economic-
Social-
Political-
Environmental-
economic- GDP growth is projected at 6.9% and7. 9% in 2022 and 2023.
eh im not sure but i hope it kinda help im so sorry
What do geologists look for when observing a rock sample?
Geologists examine a rock sample to determine its mineral makeup, color, and structure. Mineral and other elements are combined to form rocks.
They might also try to find solutions to issues brought on by environmental threats like erosion and flooding. Geologists research the components, mechanisms, and past of the planet. They look into the formation of rocks and what has occurred to them since then. Numerous colleges and universities have science or geology departments that train students for jobs in the field. These require the faculty to have qualified professionals who can teach geology classes. There are several titles for departments, including Earth Science and Geoscience. By enrolling in foundational math, science, and geography classes, students who are interested in geology can get ready. No academic subject is easier or more difficult to acquire than geology. But if you want to succeed in the field, it is a science and takes effort and commitment.
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the sea route to the indian ocean discovered by vasco de gama offered european merchants:_____.
The sea route to the Indian Ocean discovered by Vasco da Gama offered European merchants direct access to the lucrative spice trade with Asia.
Prior to the discovery of the sea route to the Indian Ocean, European merchants had to rely on overland trade routes that were controlled by middlemen who charged high prices for goods such as spices, silks, and other luxury items from Asia. By discovering a sea route to the Indian Ocean, Vasco da Gama was able to bypass these middlemen and establish direct trade links with the source of these goods, enabling European merchants to purchase them at much lower prices and sell them at a higher profit. This discovery played a significant role in the development of European trade and the rise of European colonial powers in Asia.
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Which volcanic hazard is LEAST likely to cause injury or death? a. Lava flow b. Pyroclastic flow c. Ash fall d. Lahar e. Landslide.
"The volcanic hazard that is LEAST likely to cause injury or death is a. Lava flow."
What do you mean by lava flow?Lava flows are stre-ams of molten rock that po-ur or ooze from an erupt-ing vent. Lava is erupted du-ring either non-explosive activity or explosive lava fount-ains. The 3 types of lava flow are Paho-ehoe, A'a, and Blocky lava flow. All of the-se lava flows are found on the gro-und. Pahoehoe has a smooth and glassy sur-face, A'a has a rough surface, while blo-cky lava flow has a block-like surface.
Hence the correct answer is option a. Lava flow.
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what is the cause for the slow movement of reference marks, such as the celestial poles and equator, to move across the sky?
The slow movement of celestial poles and equator across the sky is caused by the Earth's rotation and the precession of its axis.
The Earth rotates on its axis once every 24 hours, causing the entire celestial sphere to appear to rotate around us. This rotation causes the stars and other celestial objects to appear to move across the sky. The axis of rotation of the Earth is not fixed in space, but it slowly moves like a spinning top that wobbles. This movement of the Earth's axis is called precession, and it causes the celestial poles and equator to shift their position across the sky over a period of thousands of years.
Precession is caused by a combination of the gravitational forces of the Sun and Moon on the Earth's equatorial bulge, as well as the gravitational effects of other planets in the solar system. As the Earth spins on its axis, it experiences a torque that causes the axis to slowly wobble around a circle over a period of about 26,000 years.
As a result of this slow precession, the celestial poles and equator slowly move across the sky, taking thousands of years to complete a full circle. This means that over time, the positions of the stars and constellations we see in the night sky also slowly shift.
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where are the oldest rocks on the atlantic seafloor located?
Answer:
The oldest parts of the oceanic crust are found farest from the mid ocean ridges at subduction zones and continental shelves.Which stressor would be classified as a bioecological influence? Select one: A. Poor diet. B. Pessimism C. Inadequate sunlight. D. Massive urban sprawl.
Because it is influenced by variables beyond an individual's control, such as food availability, affordability, and quality, a poor diet is an example of a bioecological influence.
Three sources of social stress?Examples of social stresses include age, race, or sex discrimination, socioeconomic disadvantage, unhappy marriages or partnerships, anxiety brought on by significant life transitions (like the loss of a spouse, retirement, or change in living environment), and social isolation.
Ambient stress: What is it?July 28, 2022. According to New York-based clinical psychologist Laurie Ferguson, Laura Grafe, an assistant professor of psychology, is one of the researchers mentioned in a Time magazine article regarding ambient stress, commonly referred to as "stress that is under the level of consciousness, running in the background."
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which region in the thirteen colonies had social norms shaped by the ideas of the puritans and pilgrims?
The New England colonies had social norms shaped by the ideas of the Puritans and Pilgrims.
What is colonies?Colonies are territories that are politically and economically controlled by a foreign power. They are generally located outside the power's homeland, and are typically populated by the people of the foreign power. Colonies are considered subordinate to the home country, and are sometimes used to expand the power's resources, trade, and influence. Colonization has been a part of human history since ancient times, and continues to be practiced today.
These ideas included a strong work ethic, a belief in education and the importance of family and community. They also embraced religious freedom and moral values, such as honesty and hard work. These beliefs and values had an important influence on the social norms that shaped the region.
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What gas has a higher concentration in the stratosphere than in the troposphere?
The stratosphere has significantly greater ozone concentrations than the troposphere, while the troposphere has far higher amounts of water.
The quantities of ozone and water vapour in the stratosphere and troposphere differ significantly from one another. At 90% of ozone may be found in the stratosphere, which starts at an altitude of 50 kilo-meters (31 miles) and rises to a height of 10-16 kilometres (6-10 miles) above the surface of the Earth. The term "ozone layer" refers to the stratospheric area with the highest ozone content.
The two most common gases are nitrogen (78%) and oxygen (21%), with argon (.9%) and a trace amount of hydrogen ozone (a kind of oxygen) making up the remaining 1% of all gases. The troposphere's temperature and water vapour concentration drop with altitude.
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Which one(s) of these has, or have, a spreading growth habit?
A. Perennial ryegrass
B. All of these turfgrasses
C. Tall fescue
D. Kentucky bluegrass
E. None of these turfgrasses
A spreading growth habit in turfgrasses refers to their ability to spread horizontally and form a dense, interconnected turf. Based on this definition, the turfgrasses that have a spreading growth habit are: Tall fescue and Kentucky bluegrass. Therefore the correct option is option are C and D.
In turfgrass, the term "spreading growth habit" refers to the ability of the grass to spread and create a dense turf through aboveground stems or belowground rhizomes and stolons. Grasses with a spreading growth habit have the ability to recover quickly from damage and to fill in bare spots in the lawn. This type of growth habit is desirable for sports fields, parks, and home lawns.
Examples of turfgrass species with a spreading growth habit include Bermuda grass, zoysia grass, and some types of fescue grass.
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A magma body is most realistically represented by picturing:________
A magma body is most realistically represented by picturing a body of fire.
What makes up molten magma?Magma is a molten and semi-molten rock mixture found beneath the Earth's surface. This mixture is typically composed of four components: a hot liquid base known as the melt, minerals crystallized by the melt, solid rocks incorporated into the melt from the surrounding confines, and dissolved gases.
Magma is formed when mantle rocks partially melt. As the rocks ascend (or have water added to them), they begin to melt slightly. These small blobs of melt migrate upward and coalesce into larger volumes that continue to rise. They could congregate in a magma chamber or just come straight up.
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