Question

a.
Answer the following questions in a sentence each:
What is responsible for the shrinking of the Arctic ice cap?
b. On what do poor communities depend for their livelihood?
c.
How do melting and freezing of snow affect the reindeer?
d. Why is a thick snow cover important for the polar bears?
What may happen to Chinese glaciers by 2050?
f Why has global sea level arisen?
Why had the inhabitants of Vanuata leave their original living place?
e.
h.
How has ethanol been useful to the Brazilians ?​

Answer 1

Answer:

1. greenhouse gas forcing
2. Farm sources of livelihood are generally dominate in rural areas and include crop, livestock, forest, rented out the land, agriculture wages labor, farm machinery, fruit, vegetable, and fodder.
3. In snow-covered areas, warming could increase the occurrence of repeated freezing and thawing which could lead to the formation of an ice crust thus preventing animals from eating grasses and mosses and sometimes even killing the plants. Lemmings, musk ox and reindeer/caribou are all affected.
4. Interestingly, the polar bear's coat has no white pigment; in fact, a polar bear's skin is black and its hairs are hollow. They have a thick layer of body fat, which keeps them warm while swimming, and a double-layered coat that insulates them from the cold Arctic air.
5. Glaciers are disappearing globally faster than at any time since records began 100 years ago. Most of those in central Asia could be gone by 2050.
6. Sea level rise is one of the best known of climate change's many dangers. As humanity pollutes the atmosphere with greenhouse gases, the planet warms. And as it does so, ice sheets and glaciers melt and warming sea water expands, increasing the volume of the world's oceans

8. Brazil's 40-year-old ethanol fuel program is based on the most efficient agricultural technology for sugarcane cultivation in the world, uses modern equipment and cheap sugar cane as feedstock, the residual cane-waste (bagasse) is used to produce heat and power, which results in a very competitive price and also in a ...

Explanation:

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Answer 2

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