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: when a metal rusts , that metal becomes orange on the surface, Fact2: Iron rusts in the presence of oxygen and water., Question: Exposure to oxygen and water can cause iron to  (A) decrease strength (B) melt (C) uncontrollable burning (D) thermal expansion (E) turn orange on the surface (F) vibrate (G) Extremes of temperature (H) levitate

SOLUTION: E

PROBLEM: Fact1: conserving water can be used for survival in a dry environment, Fact2: We learned about desert plants and how they adapt themselves to the hot dry desert environment so they can survive., Question: Plants can conserve water in order to survive where? (A) our planet (B) in a vacuum (C) in the desert (D) Earth's atmosphere (E) In the winter (F) in a laboratory (G) on the moon (H) forest is destroyed

SOLUTION: C

PROBLEM: Fact1: decomposition increases amount of organic matter in soil, Fact2: Organic Matter Organic matter is the varied array of carbon-containing compounds in the soil., Question: What increases the amount of carbon-containing compounds in the soil? (A) nitrogen fixation (B) Greenhouse gasses (C) fossil fuels (D) chlorofluorocarbons (E) freezing (F) erosion (G) rainfall (H) decomposition

SOLUTION:
H