Science
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Answers
1. The main difference between zoos and sanctuaries is how they acquire their animals. A zoo might buy, sell, breed, or trade animals, or even capture animals from the wild. ... A sanctuary also does not capture animals from the wild but acquires only animals who can no longer survive in the wild.
2. Birds migrate to move from areas of low or decreasing resources to areas of high or increasing resources. The two primary resources being sought are food and nesting locations.
3. International Union for Conservation of Nature
4. Paper should be saved because it takes around seventeen full grown trees to make one tonne of paper. Trees, as we know, are important to maintain a balance of nature. Therefore,' in order to save trees and prevent the impact of their loss on living organisms, we need to save paper.