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").

[EX Q]: Fact1: Biodiversity increases the productivity and stability of ecosystems., Fact2: Ecotourism, on the other hand, can help to conserve biodiversity., Question: What increases the stability of ecosystems? (A) overpopulation (B) water consumption (C) loose soil (D) Quality of life (E) agriculture (F) deforestation (G) ecotourism (H) trees
[EX A]: G

[EX Q]: Fact1: Plants live just about everywhere on Earth., Fact2: Snakes live almost everywhere on earth., Question: Plants and snakes live _. (A) almost everywhere (B) important habitats (C) hydrate their cells (D) reproduce (E) more abundant (F) competing for resources (G) the environment (H) vegetation
[EX A]: A

[EX Q]: Fact1: dew is formed when water vapor condenses over night, Fact2: Rocks and grasses glisten with dew., Question: what happens when water vapor condenses over night? (A) water evaporates (B) Something that makes plants green (C) lakes freeze (D) Warm air moving into cold air (E) rocks and grasses glisten (F) refraction of light (G) lawns dry out (H) it keeps an organism warm
[EX A]:
E