The main point of paragraph 4 is to describe _____...

D

- Hướng dẫn giải

Phương pháp giải:

Giải chi tiết:

Đáp án là D. Causes: the burning of large amounts of fossil fuels, such as coal and oil, which release gases that trap heal in the atmosphere.

Effects: World temperatures already have increased this century by about 6 degrees Celsius and are projected to rise by between 1.6 degrees and 3.8 degrees by 2100.