instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: If a solute is a solid or liquid, increasing the temperature increases its solubility. For example, more sugar can dissolve in hot water than in cold water. Answer: increases its solubility
answer:
What does increasing a solute's temperature do?

question:
Passage: Relative dating determines which of two fossils is older or younger than the other but not their age in years. Relative dating is based on the positions of fossils in rock layers. Lower rock layers were laid down earlier, so they are assumed to contain older fossils. This is illustrated in Figure below . Answer: relative
answer:
What type of dating determines which of two fossils is older or younger than the other but not their age in years?

question:
Passage: Chemical reactions that release energy are called exothermic reactions . An example is the combustion of methane described at the beginning of this lesson. In organisms, exothermic reactions are called catabolic reactions . Catabolic reactions break down molecules into smaller units. An example is a decomposition reaction, such as the breakdown of glucose molecules for energy. Exothermic reactions can be represented by the general chemical equation:. Answer: exothermic reactions
answer:
What type of reactions are chemical reactions that release energy?