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: melting means changing from a solid into a liquid by adding heat energy, Fact2: When a substance melts, it changes phase from a solid to a liquid by the application of heat., Question: What can be done to a solid by adding heat energy? (A) massive damage (B) phasing the bubbles (C) It expands (D) cooling the center (E) Evaporation (F) changing the phase (G) removing the air (H) Water expanding
F

Fact1: Most plants grow roots down into the soil to absorb water and minerals., Fact2: If the plant is green, it is a producer., Question: What can a producer grow down into the soil in order to absorb minerals and water? (A) Trees (B) stems (C) roots (D) Oak (E) seeds (F) burrs (G) grass (H) water absorbing petals
C

Fact1: a breathing mask is used for keeping harmful particles from entering the respiratory system, Fact2: All smoke is harmful to the respiratory system., Question: What keeps smoke out of the respiratory system? (A) Cooking (B) Masks (C) Glasses (D) skin (E) Gloves (F) Hats (G) Urea (H) oxygen

B