TASK DEFINITION: In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
PROBLEM: Sentence: When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being reduced. Question: When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being what?

SOLUTION: reduced

PROBLEM: Sentence: Evaporation and condensation are similar because both are caused by changes in heat energy. Question: In which way are evaporation and condensation similar?

SOLUTION: Both are caused by changes in heat energy.

PROBLEM: Sentence: Pheromones are released into the environment for communication between animals of the same species. Question: What kind of hormones are released into the environment for communication between animals of the same species?

SOLUTION:
pheromones