instruction:
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").
question:
Fact1: global warming is when worldwide temperature increases, Fact2: Global warming is caused by carbon dioxide trapped in the atmosphere., Question: What does carbon dioxide cause? (A) skateboards (B) Greenhouse gases (C) Worldwide temperature increase (D) major threat to health (E) direct damage to the lungs (F) running (G) a lot of human deaths (H) Temperature decrease
answer:
C


question:
Fact1: a mold spore has a negative impact on the respiratory system, Fact2: Insects also have both a heart and a respiratory, or breathing, system., Question: Mold spores have what impact on breathing? (A) neutral (B) ambiguous (C) symptoms (D) motility (E) positive (F) dangerous (G) negative (H) uncontrolled
answer:
G


question:
Fact1: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone, Fact2: Caverns are characterized by enormous rooms., Question: what are formed by carbonic acid in groundwater seeping through rock dissolving limestone (A) oceans (B) Calcium carbonate (C) coral reefs (D) enormous rooms (E) a solute (F) creeks (G) Greenhouse gasses (H) a hydraulic system
answer:

D