Q: Smog is a visible form of what? Choices: - condensation - water pollution - oxidation - air pollution A:
air pollution

(Question)
Q: What type of ions play critical roles in light-dependent reactions? Choices: - calcium - silicon - helium - hydrogen A:
(Answer)
hydrogen

Ques: Q: What is the sum of the massess of the atoms in a molecule? Choices: - underlying mass - magnetic mass - nuclear mass - molecular mass A:
Ans: molecular mass

(Q).
Q: What organ do mammals have that is exceptionally large for their body size? Choices: - lungs - heart - liver - brain A:
(A).
brain

Ques:Q: What effect does changing temperature have on a system at equilibrium? Choices: - movement - the height - energy - stress A:

Ans:stress

Q: What branch of biology focuses on heredity? Choices: - Epidemiology - ontology - semiotics - genetics A:
genetics