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: condensing means changing from a gas into a liquid by reducing heat energy, Fact2: Heat energy is measured in calories., Question: Calories measure the energy that leaves a gas to form what? (A) nutrients (B) burning (C) warmth (D) H20 (E) ligt (F) liquid (G) store (H) movement
F

Fact1: a flashlight requires a source of electricity to produce light, Fact2: Flashlights can help children see better., Question: Children see better with a source of electricity to do what? (A) focusing a lens (B) staying warm (C) survival (D) reproduce (E) produce light (F) remove electricity (G) produce darkness (H) remove light
E

Fact1: Ethologists usually study how animals behave in their natural environment., Fact2: Ethologists study animal behavior., Question: What usually studies how animals behave in their natural environment? (A) psychologists (B) zookeepers (C) looseness of dirt or compost (D) it's state (E) that material's properties (F) teachers (G) sensory neurons (H) animal behaviorists

H