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: Flagella help prokaryotes move., Fact2: Most prokaryotes are unicellular., Question: What helps unicellular organisms move? (A) evaporation (B) bacteria (C) heat energy (D) glucose (E) sweating (F) flagella (G) legs (H) blood

A: F
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Q: Fact1: moss causes chemical weathering, Fact2: Chemical weathering is the chemical disintigration of rocks., Question: What can cause the chemical disintigration of rocks (A) Moss (B) sodium (C) wind (D) oil (E) rivers (F) mines (G) soils (H) fire

A:
A
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