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: Biomass is the total mass of organisms at a trophic level., Fact2: Producers make up the first trophic level, primary consumers the second, and so on., Question: What is the total mass of primary consumers (A) Plants (B) animals (C) food (D) Mountains (E) Biomass (F) decreases (G) all matter (H) Weight

Answer: E


Question: Fact1: friction causes the temperature of an object to increase, Fact2: Friction Rubbing an object on another object can produce friction., Question: what does rubbing an object on another object cause that object to do? (A) heat production (B) heat is produced (C) sandpaper (D) It gets heated up (E) decrease in temperature (F) explode (G) heat the body (H) increase in temperature

Answer: H


Question: Fact1: adding salt to a solid decreases the freezing point of that solid, Fact2: When seawater freezes, salt is expelled from the solid in a concentrated salt solution called brine., Question: What happens to salt in seawater as it freezes at the freezing point? (A) vaporization (B) boiling (C) expelled (D) salinity (E) evaporation (F) less water (G) water vapor (H) Temperature

Answer:
C