Question

choose correct answer

3. The six warmest years on record have occurred in the-
b. 1970's c. 1980's d. 1990's
4. The most important source of energy on earth is
ay Sun b. Water c. Air d. Wind
a. 1960's​

Answer 1

Answer:

1980

Sun

a. 1960's

Explanation:

Hope it is helpful to you

Answer 2

Answer:

The six warmest years on record have occurred in the- 1990's

The most important source of energy on earth is

sun