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: Biomass is the total mass of organisms at a trophic level., Fact2: Each stage is a trophic level., Question: The total mass of organisms in an environmental stage is called what? (A) food pyramid (B) extinction (C) ecological pyramid (D) food chain (E) vegetation (F) food (G) ligt (H) biomass

A: H
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Q: Fact1: if gas is heated then that gas will expand, Fact2: If more space between 2 galaxies more space to expand so it moves away faster., Question: When gas is heated, it takes up more: (A) solutes (B) plasma (C) fluidity (D) energy (E) space (F) viscosity (G) matter (H) Energy.

A: E
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Q: Fact1: Constriction occurs when the muscular walls of blood vessels contract., Fact2: Cocaine constricts the blood vessels., Question: Cocaine causes what to contract? (A) layers of fat (B) a lot of human deaths (C) Walls of blood vessels. (D) harmful substances (E) the rest of the body (F) metabolic reaction (G) direct damage to the lungs (H) decreases its bodily water

A:
C
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