TASK DEFINITION: Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
PROBLEM: Question: What enthalpy change is observed in an exothermic reaction? Answer: negative

SOLUTION: The reaction is exothermic and thus the sign of the enthalpy change is negative.

PROBLEM: Question: What unit of measure is equal to the amount of work a horse can do in 1 minute? Answer: horsepower

SOLUTION: Power may be measured in a unit called the horsepower. One horsepower is the amount of work a horse can do in 1 minute, which equals 745 watts of power.

PROBLEM: Question: Which type of glaciers form several unique features through erosion, including cirques, aretes, and horns? Answer: valley glaciers

SOLUTION:
Glaciers cause erosion by plucking and abrasion. Valley glaciers form several unique features through erosion, including cirques, aretes, and horns.