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: planting trees has a positive impact on an ecosystem, Fact2: An ecosystem contains many habitats., Question: doing what with trees has a positive impact on habitats (A) making tables (B) chopping down (C) planting (D) watershed (E) earth (F) bloom time (G) growth (H) timbering

A: C
****
Q: Fact1: Earthworms are important deposit feeders that help form and enrich soil., Fact2: Tulips perform best in a sandy, organically enriched soil., Question: Earthworms help form and add what to soil (A) Sediment (B) organic material (C) Converting waste. (D) bacteria (E) heat (F) Chemical energy (G) grass (H) acidity

A: B
****
Q: Fact1: an incandescent light bulb converts electricity into light by sending electricity through a filament, Fact2: Incandescent bulbs produce more heat than light., Question: What do incandescent bulbs produce as they create electricity? (A) energy (B) heat (C) fuel (D) smoke (E) gas (F) fields (G) copper (H) waves

A:
B
****