Question: Fact 1: Bottleneck effect occurs when a population suddenly gets much smaller. Fact 2: Severe droughts have caused much of the rural population to urbanize. Given the two facts above, severe droughts may cause ?
OPTIONS:
- evolution
- population growth
- forest is destroyed
- species variation
- major threat to health
- Dehydration
- the ground shaking
- a bottleneck effect
Answer: a bottleneck effect

Question: Fact 1: If two balanced forces act on an object in opposite directions then that object will remain stationary. Fact 2: Centrifugal force exactly balances gravitational force. Given the two facts above, centrifugal force act along with gravitational force to cause an object to remain what?
OPTIONS:
- moves
- ground
- small
- Energy.
- kinetic energy
- stationary
- energy
- It will move.
Answer: stationary

Question: Fact 1: Marine species live mainly in shallow coastal waters. Fact 2: Seahorses inhabit shallow coastal waters, especially seagrass beds, coral reefs and mangrove swamps. Given the two facts above, what kind of species are seahorses?
OPTIONS:
- horse
- seaweed
- edible
- marine
- a fish
- shellfish
- strong
- food
Answer:
marine