TASK DEFINITION: In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.
PROBLEM: Fact: optical tools are used for observing materials up close.

SOLUTION: materials.

PROBLEM: Fact: an animal requires nutrients to grow and heal.

SOLUTION: animal nutrients.

PROBLEM: Fact: landfills have a negative impact on the environment.

SOLUTION:
Environment.