Ques and Ans: Temperature falls from the equator to
Options:
- (A) South Africa
- (B) Antarctica
- (C) Asia
- (D) our planet
- (E) Summer
- (F) during the day
- (G) South America
- (H) It decreases
(B)
Explanation for the Ans above: [[Temperature falls from the equator to the poles. First, strong winds circling Antarctica isolate the atmosphere near the pole the winter. Temperature falls from the equator to Antarctica.]]

Ques and Ans: What is needed for changes to occur?
Options:
- (A) exercise
- (B) mutations
- (C) growth
- (D) healthy animals
- (E) environment
- (F) evaporation
- (G) Exfoliation
- (H) births
(B)
Explanation for the Ans above: [[Mutations are essential for evolution to occur. Evolution Change through time. Mutations are essential for changes to occur.]]

Ques and Ans: Mammals generate heat mainly by what?
Options:
- (A) hugging mammals
- (B) calorie counting
- (C) with their fur
- (D) energy of moving objects
- (E) burning calories
- (F) sweating
- (G) selling fur coats
- (H) flow of electrons
(E)
Explanation for the Ans above:
[[Mammals generate heat mainly by keeping their metabolic rate high. And resting metabolic rate is a big contributor to calories burning. Mammals generate heat mainly by burning calories.]]