TASK DEFINITION: In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
PROBLEM: Fact1: volcanic ash in the atmosphere decreases the temperature by blocking the sun, Fact2: Ash clouds are a particular problem for aircraft., Question: What are particular problems for aircraft in the atmosphere? (A) transportation (B) clog airways (C) extremely low humidity (D) volcanic clouds (E) feedback mechanisms (F) negative feedback (G) gas spreads in the air (H) very complex

SOLUTION: D

PROBLEM: Fact1: a mirror is used for reflecting light, Fact2: Light seems to travel in rays or beams., Question: what can a mirror be used to reflect? (A) noble gases (B) air particles (C) glass (D) focusing a lens (E) rays or beams (F) photons (G) sun's heat (H) an electron lens

SOLUTION: E

PROBLEM: Fact1: Some mollusks are nearly microscopic., Fact2: Interestingly, a squid is also a mollusk., Question: What can be nearly microscopic? (A) squids (B) bacteria (C) barnacles (D) parasites (E) fossils (F) molecules (G) atoms (H) fungi

SOLUTION:
A