4. Read the following sentences: "People are using the Amazon to grow plants for
humans, like bananas and sugar cane plants. Others are digging holes in the earth to
look for oil or gas reserves. And still others are cutting down the trees for lumber."
Based on this information, what is the main reason why humans are changing the
Amazon rainforest?
A. the preservation of rare plant and animal species
B. bringing modern technology to indigenous tribes
C. the desire for more resources
D. minimizing carbon dioxide in the atmosphere