Answer:
Explanation:Throughout history, human activities have changed or destroyed the
habitats that animals need to survive. One of these activities has been the
construction of roads and buildings in areas that were once wild. Building
in these areas has destroyed animal homes, food, or water supplies. People
have also cut down trees for lumber, which has destroyed the homes of
animals living in those trees. Likewise people have hunted animals for their
meat, fur, or other body parts. In addition, pollution caused by humans has
affected some of the places that animals live.
2 Due to animals habitats being disturbed as well as other reasons,
scientists and researchers track animals in the wild to see if their numbers
are changing. When an animal’s numbers decrease until they are at
risk of disappearing completely, they may be classified as threatened or
endangered. When there are no more of the species left in the world, they
are classified as extinct. As some animals become extinct, other animals
are affected. Because some human activities can have a negative impact on
animals, many people believe that animals must be protected.
3 One way that people have tried to protect animals from extinction is to
establish nature parks and sanctuaries. People cannot build or hunt in those
areas, and rangers are there to watch over the animals. The public is often
allowed to enjoy these animals by driving through the reserves and viewing
the animals in a wide-open atmosphere.
4 Many nature parks have programs that keep animals in protected places.
By putting them in controlled environments, the animals can live safely,
