5. What is the chemical reaction at the heart of green plants today that changed
the atmosphere of the early earth?

Answers

Answer 1

Answer:

Over millions of years, a chemical reaction called photosynthesis was responsible for increasing the amount of oxygen in the atmosphere of the early Earth.


Related Questions

What part of the solar system is associated with the name solis dies

Answers

Answer:

This name resulted from the Germanic interpretation of Latin dies solis, which is itself a translation of the Greek heméra helíou.

What is the only state that has a one-syllable name?.

Answers

Answer:

Maine is the only U.S. state with a single syllable.

When you see water sticking to glass this is mainly due to.

Answers

Answer:

Condensation

Explanation:

Condensation is the process where water vapour becomes liquid. It is the reverse of evaporation, where liquid water becomes a vapour. Condensation happens in one of two ways: Either the air is cooled to its dew point or it becomes so saturated with water vapour that it cannot hold any more water.

North Korea is a part of what climate zone?

Answers

i estimate it is in the north

Answer:

North Korea actually contains two climate zones. The northern part of North Korea has a temperate climate, while the southern part of North Korea has a subtropical climate.

Which country has the largest concentration of glaciers in the alps?.

Answers

Answer:

Explanation:

Aletsch Glacier Location in Switzerland Show map of Switzerland Show map of Alps Show all

Type Valley glacier

Location Valais, Switzerland

A student drops a tennis ball from the top of a building as shown in the picture air resistance is negligible. Explain how the student can determine the height of the building if the kinetic Energy of the tennis ball is known when it hits the ground. And your explanation use the terms kinetic energy, gravitational potential energy, acceleration due to gravity mass and height

Answers

We can use potential energy to solve. Remember, your height and your gravity need to have the same sign, as they are moving in the same direction (downward). Either make them both negative, or use an absolute value.

Using conservation of energy, we know that PEtop=KEbottom. This tells us that the potential energy at the top of the hill is all converted to kinetic energy at the bottom of the hill. We can substitute the equations for potential energy and kinetic energy.

mgh=12mv2

The masses cancel out.

gh=12v2

Plug in the values, and solve for the velocity.

A person is lost and needs to go south. how might a magnetic compass help the person?

Answers

Answer:

The compass always points north. One can use this to know which direction North is, and therefore, in which direction south is, since south is directly opposite of north.

The compass always points north. One can use this to know which direction North is, and therefore, in which direction south is, since south is directly opposite of north.

What is a  compass?

A compass is a device used for navigation and geographic orientation that displays the cardinal directions. It is often made up of a magnetized needle or another device, such as a compass card or compass rose, that may swivel to align with magnetic north.

The needle on the compass always points north. This may be used to determine which direction North is, and hence which way South is, because south is precisely opposite north.

The needle on the compass always points north. This may be used to determine which direction North is, and hence which way South is, because south is precisely opposite north.

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The italian alps have one of the world’s largest collections of what?.

Answers

Answer:

Cows

Petroglyphs

Rivers

Trees

Mountains?

Explanation:

In Camonica valley, located in Italy’s eastern Alps, visitors can find one of the world’s largest collections of prehistoric petroglyphs. The site is called Valcamonica and stretches for 56 miles across the valley. More than 2,500 rocks are carved with up to 300,000 symbols, animals, scenes, and drawings. Valcamonica was added to UNESCO’s World Heritage list in 1979.

Volcanologists and seismologists are specialized

Answers

Answer:

Volcanologists study active volcanoes and get down and dirty with ash. They even experiment with red hot lava! Seismologists study earthquakes from fault to devastation.

Explanation:

locations on earth where significant hominid fossil finds occur

Answers

Answer:

4 locations on earth where significant hominid fossils find occur are

-Dali,China

-Kanapoi, Kenya

-Aramis, Ethiopia

-Feldofer, Germany

Which text is followed by Muslims but not by Christians?
A. The Old Testament
OB. The New Testament
O C. The Torah
O D. The Quran

Answers

Answer:

d. the Quran

Explanation:

it is the holy text of Islam

Classify each of the following cloud types as low-level, medium-level, or high-level.
Altocumulus
Altostratus
Cirrocumulus
Cirrus
Cumulus
Nimbostratus
Stratus

Answers

Altocumulus - medium-level

Altostratus - medium-level

Cirrocumulus - high-level

Cirrus - high-level

Cumulus - low-level

Nimbostratus - high-level

Stratus - low-level

Answer:

It is D.

Explanation:

nimbostratus

Hope this helps

What governmental group voted to keep the US out of the League of Nations?

Answers

Answer:

Explanation:

The League of Nations was established at the end of World War I as an international peacekeeping organization. Although US President Woodrow Wilson was an enthusiastic proponent of the League, the United States did not officially join the League of Nations due to opposition from isolationists in Congress.

It was motivated by the republican group.

When does the northern hemisphere receive the fewest direct rays from the sun? during the fall equinox during the winter solstice during the spring equinox during the summer solstice

Answers

During the winter solstice, the northern hemisphere receives the fewest direct rays from the sun.

What part of the Northern Hemisphere gets the fewest direct solar rays?

The Northern Hemisphere's winter season begins on December 21 or 22, when the North Pole has inclined 23.5 degrees away from the sun.

The winter solstice occurs on this day. The sun is at its lowest angle, and the Northern Hemisphere receives the least amount of daylight.

Therefore, option (b) or (ii), during the winter solstice, is the correct answer.

For more information about the Northern hemisphere, refer below

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Answer:

during the winter solstice

Explanation:

The elastic rebound theory for the origin of earthquakes was first proposed by ________ following the ________ earthquake.

Answers

Answer:

The elastic rebound theory for the origin of earthquakes was first proposed by Henry Fielding Reid following the 1906 San Francisco earthquake.

Deserts can be found near oceans on the coast of continents?.

Answers

Answer:

Yes.

Explanation:

Coastal deserts, as the name indicates, are deserts that stretch along the shore. They're one of the four primary desert varieties. Their proximity to the sea endows them with distinct characteristics not present in other deserts. Deserts like this are common on the western margins of continents, when cold ocean currents flow parallel to the shore. The air above is unable to contain moisture due to the cold currents, and the majority of it falls as rain on the sea before reaching land. As a result of the cold ocean currents, the area around the shore receives little or no precipitation and becomes a desert. Winters in coastal deserts are generally brief, with temperatures of 5°C and lower, with the lowest temperature recorded being -4°C. Summer temperatures in the coastal deserts range from 13°C to 24°C, with 35°C being the maximum ever recorded. Every year, an average of 13cm of rain is recorded. Despite their proximity to water sources, these deserts remain noticeably dry because the majority of precipitation falls in the ocean, with just a little portion reaching land. The soils in these deserts are more permeable, with a moderate texture and salt concentration. The production of strong fogs in the winter is another distinctive feature of coastal deserts. Upwelling cold currents cause such fogs to develop, which coat the desert and prevent sun rays from reaching the sands.

What physical feature is labeled in green on the map?

Question 2 options:

African Savanna


African Rainforest


Sahara Desert


Sahel

Answers

Answer:

The answer Answer is simple: It's the African Rainforest.

16. What are the two classes of
pure substances?
A. Atoms and molecules
B. Solutions and mixtures
C. Liquids and gases
D. Elements and compounds

Answers

Answer:

B and C

Explanation:

so so soryy if im wrong

Explanation:

I guess the answer is B and D

from which I know, D is for sure

Find the center and radius of the circle given by this equation: x2−10x+y2+6y−30=0

Answers

Center:(5, -3)
Radius: 8
I think
Hope it helps have a nice day :)

List five merit goods in your community or a nearby city and the functions they serve

Answers

Examples of merit goods in the community are:

education: Helps to educate the masses and give them a career.health care: Takes care of the health needs of the population.welfare services: Helps to ensure that people are helped to improve their living conditions and help financially.housing: Helps to ensure that the citizens have adequate shelter.fire protection: helps to establish standards that would help people against fire incidents.

What are merit goods?

These are the goods that are in the society which the people and the government have the opinion that they are deserving of public funds.

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how to reduce damage and loss of life and property during earthquakes.

Answers

Answer:

How to Prevent Earthquake Damage

1. Secure your belongings. The largest financial loss you can incur during an earthquake will be from falling objects and overturned furniture.

2. Put latches on cabinet doors and file cabinets. During an earthquake doors and drawers can come open.

3. Fasten your water heater and other appliances. Secure your water heater to wall studs.

4. Store hazardous materials in a sturdy place. Mixing or spilling chemicals can be dangerous.

5. Keep fire extinguishers. Place them throughout your home in the event you need them.

Explanation:

Answer:

ANCHOR OR RELOCATE TOP-HEAVY OR LARGE OBJECTS Take the time to anchor top-heavy or large furniture, like bookshelves or wardrobes, to prevent them from falling over during an earthquake. If they can't be anchored, move them to areas of the home where they are less likely to cause injuries if they fall.

hope this helps!

What is the difference between the Geocentric and Heliocentric models of the Solar System and which one is correct?

Answers

Answer:

Are there any options, hints, or anything like that?

China has a population of approximately 1,382,323,332 people. The united states has a population of about 324,118,787 people

Answers

China has a population of approximately 1,382,323,332 people. The population of the United States is about 324,118,787 people. Using scientific notation, give the approximation for each population.

China's population is 1.382 * 10^9 and United State's population is 3.241 * 10^8. Scientific notation is scientific form or a standard form in the UK.

What do you mean by Scientific notation?

Scientific notation is a way of displaying numbers that are too big or too small to be easily written in decimal form.

As per the information,

China's population is 1,382,323,332 people

United States is 324,118,787

Using scientific notation,

China's population is 1.382 * 10^9 and United State's population is 3.241 * 10^8.

Thus, using scientific notation, China's population is 1.382 * 10^9 and United State's population is 3.241 * 10^8.

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Gold was deposited into earth’s crust billions of years ago by what?.

Answers

It is theorized that gold arrived on Earth via interstellar dust and asteroid impacts billions of years ago. It is a yellow-colored precious metal mainly found in our planet's crust.

Melting of sea ice contributes more to sea level rise than does melting of ice on land-based ice sheets because:

Answers

the melting sea ice goes directly into the sea, causing sea level to increase

Hill station located in the alps in western austria.

Answers

Answer:

Tyrol

I hope this helps

Hill station located in the alps in western Austria is called Tyrol.

What is Hill station?

A town known as a hill station is one that is situated higher up than the neighboring plain or valley.

For towns established by European colonialists as escapes from the summer heat, the term "hill station" was most commonly used in colonial Asia, though it was also used in Africa.

Dale Kennedy notes that in the Indian context, "the hill station was seen as an exclusive British preserve: here it was possible to render the Indian into an outsider."

The majority of hill stations in India, which has the most of them, are located at an elevation of between 1,000 and 2,500 meters.

High refuge, high refuge to hill station, and hill station to town are the three stages Kennedy, following Monika Beuerlein, believes the development of hill stations in India went through.

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We live in which biome? question 2 options: oceans wetlands temperate forests tropical forests mountains grasslands

Answers

We live in Temperate Forests which is the southeastern part of the United States. The climate in this area has four distinct season as we know; summer, fall, winter, spring.

Does anyone know how to put biomes in a definition (please don’t give online answers.

Answers

An area of land where there are the same species and weather conditions. I’m not sure how much this will help.

What two narrow waterways located at the west end of the anatolian peninsula.

Answers

Answer:

Bosporus Strait & Dardanelles

Explanation:

those are the only two i can think of

Which activity uses an electromagnet? A. polishing the floor B. using a door bell C. lighting a room D. cooking

Answer?​

Answers

Answer:

I GUESS

Explanation:

using a doorbell

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