2. How will the polar habitats be affected if permafrost mens!
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3. Name two things that pollute the oceans.
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4. How does polluted water affect living beings?
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5. If all the ice in the polar regions melts, whom will it affect and he
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Answer
2.Climate Change
Summer ice cover is shrinking, permafrost is melting and coastlines have been exposed to erosion.
Animals such as polar bears and walruses are losing habitat. Sea ice is also disappearing in Antarctica, where its loss threatens to wipe out the penguin species that live there.
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3.
Common man-made pollutants that reach the ocean include pesticides, herbicides, fertilizers, detergents, oil, industrial chemicals, and sewage.
Many ocean pollutants are released into the environment far upstream from coastlines.
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4.
Infectious diseases, like cholera, typhoid fever and other diseases gastroenteritis, diarrhea, vomiting, skin and kidney problem are spreading through polluted water.
Human health is affected by the direct damage of plants and animal nutrition
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5.
- Melting land ice, like mountain glaciers and the Greenland and Antarctic ice sheets, will change the Earth's rotation only if the meltwater flows into the oceans.
- Melting sea ice, such as the Arctic ice cap, does not change sea level because the ice displaces its volume and, hence, does not change the Earth's rotation.
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