The ears, feet and tail of north american mammals are often smaller in northern species than they are in southern species. Explain the adaptive advantage of these size differences

Answer:

Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.

Explanation:

Carbon moves from the atmosphere to plants. ...

Carbon moves from plants to animals. ...

Carbon moves from plants and animals to soils. ...

Carbon moves from living things to the atmosphere. ...

Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...

Carbon moves from the atmosphere to the oceans.

Final answer:

Human activities, such as burning fossil fuels, deforestation, and animal husbandry, significantly affect the carbon cycle. These activities release large amounts of carbon dioxide into the atmosphere at a rate faster than it can be naturally absorbed, contributing to global warming and climate change.

Explanation:

Human activities significantly influence the carbon cycle. This happens in various ways such as the burning of fossil fuels, deforestation, and animal husbandry. These activities release large quantities of carbon dioxide into the atmosphere at a rate faster than it can be naturally absorbed.

Burning of fossil fuels like coal, oil, and gas releases carbon that has been stored for millions of years, increasing the levels of atmospheric carbon dioxide. This burning process has accelerated since the Industrial Revolution and contributes to an increase in carbon dioxide levels in the atmosphere.

Deforestation indirectly accelerates the rise in carbon dioxide levels. Trees absorb carbon dioxide for photosynthesis, and when they are cut down, this absorption process is interrupted. Additionally, when these trees are burned or rot, the stored carbon is released back into the atmosphere as carbon dioxide.

Furthermore, animal husbandry practices contribute to the increase in atmospheric carbon. The rearing of large numbers of livestock to meet the protein needs of the growing global population results in increased levels of carbon dioxide and methane production. The livestock respire, releasing carbon dioxide, and also produce methane, a potent greenhouse gas, through their digestive processes.

These human activities alter the nature of the carbon cycle and subsequently contribute to global warming and climate change.

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