Q: Fact 1: Condensation causes clouds to form. Fact 2: With increasing cloud blocking the sun, temperatures drop considerably. Given the two facts above, what causes sun blocking and temperature drops?

a. sweating. b. energy barrier. c. condensation. d. peachleaf willow. e. scattered light. f. global warming. g. Greenhouse gases. h. Dehydration.
The answer is:
c.