How would these changes affect our society? What will be an ideal response?

Which of the following is not a natural factor that helps reduce air pollution?

a. Wind b. chemical reactions c. salty spray from the oceans d. a sunny, warm, and dry climate e. rain and snow

Which of these four numbered features on the surface or in a cave is a stalagmite?

A) 1
B) 2
C) 3
D) 4
E) None of these are correct.

There is no evidence of recent Antarctic ice sheet breakup

Indicate whether the statement is true or false

The average temperature of the Antarctic is higher than that of the Arctic

a. True b. False