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").

Fact1: volcanic ash in the atmosphere decreases the temperature by blocking the sun, Fact2: Ash clouds are a particular problem for aircraft., Question: What are particular problems for aircraft in the atmosphere? (A) transportation (B) clog airways (C) extremely low humidity (D) volcanic clouds (E) feedback mechanisms (F) negative feedback (G) gas spreads in the air (H) very complex
D

Fact1: when a hemisphere is tilted away from the sun , that hemisphere receives less direct sunlight, Fact2: Similarly, stars are referred to as suns, but our star is the Sun., Question: what does a hemisphere need to be tilted away from the receive less sunlight? (A) h2o (B) heat energy (C) equator (D) Energy. (E) clouds (F) our star (G) an object (H) energy
F

Fact1: Ribosomes are structures in the cytoplasm where proteins are made., Fact2: Many antibiotics affect the ribosome., Question: What can affect the structures in the cytoplasm where proteins are made/ (A) aspirin (B) insulin (C) interact (D) harm them (E) temperature (F) Damages them (G) antibiotics (H) sunlight

G