It is mentioned in the passage that if the global...

Câu hỏi: It is mentioned in the passage that if the global temperature rose by 2 or 3 Celsius degree, ________

A half of the earth’s surface would be flooded

B water supply would decrease by 50 percent.

C the sea level would rise by 20 centimeters.

D 20 to 50 percent of species could become extinct.