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: webbed feet are used for moving faster through water by aquatic animals, Fact2: Animals move around, seeking their prey., Question: What do webbed feet help aquatic animals do? (A) rapid expansion (B) root growth (C) Catch prey (D) support (E) Regrows it (F) squeeze (G) Relieve pain (H) improve

SOLUTION: C

PROBLEM: Fact1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants., Fact2: Glucose, a type of sugar, is the body's fuel., Question: What is ethanol produced from? (A) coal (B) sugar (C) SO2 (D) animal fat (E) paper (F) salts (G) Trees (H) Oak

SOLUTION:
B