Ques and Ans: What die quickly if a stroke occurs?
Options:
- (A) a fish
- (B) animals
- (C) brain cells
- (D) organs
- (E) critical organs
- (F) protons
- (G) neutrons
- (H) bones
(C)
Logic for the answer: Brain cells die quickly if their oxygen supply is cut off. If the oxygen supply to the brain is cut off, a stroke can occur. Brain cells die quickly if a stroke occurs.

Ques and Ans: What would a person do that would reduce their body heat?
Options:
- (A) using steel
- (B) Exfoliation
- (C) Evaporation
- (D) drink a warm drink
- (E) burning coal
- (F) perspire
- (G) exercise outside
- (H) take a nap
(F)
Logic for the answer: Sweating reduces body heat. People of all ages and activity levels perspire or sweat. Perspiration reduces body heat.

Ques and Ans: What sea creature can sometimes be microscopic?
Options:
- (A) squids
- (B) a fish
- (C) fungi
- (D) tortoises
- (E) fossils
- (F) barnacles
- (G) bacteria
- (H) alpacas
(A)
Logic for the answer: Some mollusks are nearly microscopic. Interestingly, a squid is also a mollusk. Some squids are nearly microscopic.

Ques and Ans: Biodiversity generally increases from the poles to the area where what is found?
Options:
- (A) animals
- (B) Fjords
- (C) Most plants
- (D) Icebergs
- (E) Rainforests
- (F) Tundra
- (G) our planet
- (H) Animal survival
(E)
Logic for the answer:
Biodiversity generally increases from the poles to the equator. Most rainforests lie near the equator. Biodiversity generally increases from the poles to the area where the rainforests lie.