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").

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
D

Fact1: a seismograph is used for measuring the size of an earthquake, Fact2: When earthquakes occur near cities of any size, the potential for damage is great., Question: A seismograph is used to measure the what of damage done by an occurrence? (A) hail (B) color (C) shape (D) stoma (E) size (F) death (G) attraction (H) homes
E

Fact1: if a habitat can no longer support animals then those animals will move to another area, Fact2: Bears are powerful animals., Question: what will move to another area if their habitat can no longer support them? (A) pigeons (B) bears (C) trees (D) soil (E) squids (F) humans (G) clouds (H) Mammal

B