Answer:
Camels were used as domestic animals because Camels have long been domesticated and, as livestock, they provide food (milk and meat) and textiles (fiber and felt from hair).
A-through an optimistic viewpoint.
Answer:
A. In polar ice caps
Explanation:
In ice caps and glaciers, over 68% of the earth's fresh water is found, and in groundwater, it is found only more than 30%. In the surface water of lakes, streams and swamps, we consider only about 0,3% of our fresh water.
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C. on reserves
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Marine biologists? Divers? they could have multiple names