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Stolb23 [73]
3 years ago
7

During the Carboniferous period, which occurred approximately 360 to 300 million years ago, most of Earth was covered in dense r

ainforests. These rainforests were sustained by a humid and tropical climate that lasted for most of the Carboniferous period. At the end of the period, Earth's climate became much colder and drier, leading to a wide-scale collapse of the rainforests and a significant loss of vegetation.
How might the collapse of the Carboniferous rainforests have affected Earth's carbon cycle?

A.
The loss of vegetation would have decreased the total amount of carbon in Earth's carbon cycle.
B.
The total amount of carbon in the carbon cycle would have increased as the vegetation decayed.
C.
Over time, the decaying vegetation would have absorbed a large amount of carbon dioxide from the atmosphere.
D.
Over millions of years, the decaying vegetation would have been buried and its carbon turned into fossil fue
Biology
1 answer:
luda_lava [24]3 years ago
5 0

Answer:

The correct answer is D

Over millions of years, the decaying vegetation would have been buried and its carbon turned into fossil fuel

Explanation:

The carboniferous period is characterised by the formation of coal deposits which were formed within a context of the removal of atmospheric carbon.

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List the layers contained in the atmosphere and describe what is in each layer.
lisabon 2012 [21]

Answer:

Exosphere -The exosphere layer is mainly composed of extremely low densities of hydrogen, helium, and several heavier molecules including nitrogen, oxygen, and carbon dioxide closer to the exobase. The atoms and molecules are so far apart that they can travel hundreds of kilometers without colliding with one another.

Thermosphere - The aurora (Northern Lights and Southern Lights) mostly occur in the thermosphere. The thermosphere is a layer of Earth's atmosphere. The thermosphere is directly above the mesosphere and below the exosphere. ... Temperatures in the upper thermosphere can range from about 500° C (932° F) to 2,000° C (3,632° F) or higher.

Mesosphere- Most meteors burn up in the mesosphere. A type of lightning called sprites sometimes appears in the mesosphere above thunderstorms. Strange, high-altitude clouds called noctilucent clouds sometimes form in this layer near the North and South Poles.

Stratosphere-The stratosphere is the second major atmospheric layer above the troposphere, extending in altitude from about 8 to 30 miles high. No weather occurs in the stratosphere. The statosphere contains over 15% of the total mass of the atmosphere, and is where the ozone layer is located.

Troposphere-The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols.

i hope this helps, good luck :)

7 0
3 years ago
Which of the following statements are true? Check all that apply. All things are made of molecules. All things are made of atoms
UNO [17]

Answer:

all things are made of atoms

Explanation:

atoms are the building blocks of life you are made of atoms.

8 0
3 years ago
Read 2 more answers
A phycologist is interested in testing the claim that the proportion of algae from a local rivulet that belonged to the particul
Shkiper50 [21]

Answer:

The test statistic for this hypothesis test is - 3.68.

Explanation:

A test statistic is a random variable that is calculated from sample data and used in a hypothesis test. You can use test statistics to determine whether to reject the null hypothesis. The test statistic compares your data with what is expected under the null hypothesis.

Sample proportion = 38/50

= 0.76

Hence,

Test statistic

= \frac{0.76-0.50}{\sqrt{0.50*0.50/50}}

= 3.68

4 0
3 years ago
Animals store most of their excess energy reserves as_____,and this is explained because______.
Tatiana [17]
Fat; they store twice as much energy per gram
7 0
3 years ago
Which pigment does plants need to be able to photosynthesise?
Usimov [2.4K]

Answer:

I think the pigment should be chlorophyll

and the product is definitely oxygen and energy

6 0
3 years ago
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