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").

Q: Fact1: Earth 's tilt on its rotating axis causes seasons to change, Fact2: Weather changes from season to season., Question:  Earth 's tilt on its rotating axis causes changes in what (A) weather (B) sunlight (C) Joules (D) wind (E) heat (F) climate (G) energy (H) earth

A: A
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Q: Fact1: Biomass is the total mass of organisms at a trophic level., Fact2: Producers make up the first trophic level, primary consumers the second, and so on., Question: What is the total mass of primary consumers (A) Plants (B) animals (C) food (D) Mountains (E) Biomass (F) decreases (G) all matter (H) Weight

A: E
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Q: Fact1: harming an animal species causes that animal 's population to decrease, Fact2: Ecology is the study of populations or communities., Question: Ecology studies something that decreases when an animal species is what? (A) omnivores (B) harmed (C) deadly (D) dead (E) haploid (F) negative (G) dormant (H) inactive

A:
B
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