What are the affects of burning fuel on human health?
Options:
- (A) emissions
- (B) They aid lung health.
- (C) direct damage to the lungs
- (D) They are a hazard.
- (E) The affects are mildly healthy
- (F) The fuel burns clean.
- (G) Greenhouse gases
- (H) Global warming
--
Let's think first: Carbon monoxide is a gas produced by furnaces and other devices that burn fuel. Carbon Monoxide Carbon monoxide is a health hazard. Furnaces and other devices that burn fuel are health hazards.... So the answer is [(D)]

Which of the following would animals use to store energy?
Options:
- (A) fats
- (B) plants
- (C) sodium
- (D) blood
- (E) Energy
- (F) sugar
- (G) food
- (H) carcass
--
Let's think first: Animals use saturated fatty acids to store energy. Fatty Acids Fatty acids are the building blocks of fats. Animals use fats to store energy.... So the answer is [(A)]

What is one thing viruses do not cause?
Options:
- (A) disease
- (B) AIDS
- (C) illness
- (D) cancer
- (E) Ebola
- (F) fever
- (G) death
- (H) smallpox
--
Let's think first: Populations of viruses do not grow through cell division because they are not cells. Cancer is unregulated cell division. Cancer is not caused by viruses.... So the answer is [(D)]

What is one of the ways that mammals and other animals learn how to act?
Options:
- (A) sleeping
- (B) Movement
- (C) mating
- (D) exercise
- (E) eating
- (F) sound
- (G) playing
- (H) motion
--
Let's think first: Playing is just one of many ways that mammals and other animals learn how to behave. Acting is about behaving. Playing is just one of many ways that mammals and other animals learn how to act.... So the answer is [(G)]

What is it called when one solvent combines with another, what forms?
Options:
- (A) chemical pair
- (B) permineralization
- (C) chemical bonds
- (D) a solute
- (E) chemical duo
- (F) substance bonds
- (G) Condensation
- (H) kinetic energy
--
Let's think first: Chemical bonds form when substances react with one another. Solvents are substances, usually liquid, that dissolve other substances. When one solvent reacts with another, chemical bonds form.... So the answer is [(C)]

Migration increases what?
Options:
- (A) root growth
- (B) speed
- (C) distance
- (D) voltage
- (E) energy usage
- (F) Plants growth
- (G) gene flow
- (H) layers of fat
--
Let's think first: Gene flow occurs when individuals move into or out of a population. Internal migration describes moves within a country. Gene flow occurs when individuals migrate.... So the answer is [(G)]