What is the main environmental issue caused by palm oil plantations?
A. the depletion of coral reefs
B. increased air pollution
C. a lack of biodiversity
D. the creation of acid rain

How have people adapted physically to different environments? why do you think these differences developed?

Globalization leads to more trade between a)consumers. b)businesses. c) factories. d)countries.

Synesthesia is a phenomenon that has been estimated to occur in only a few people in a million. because of its rarity, researchers are likely to choose which research method to study it?