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.

[Q]: Fact: Water is essential for all life on Earth.
[A]: earth wildlife.


[Q]: Fact: an anemometer is used to measure wind speed.
[A]: anemometer meteorologist.


[Q]: Fact: Energy is passed up a food chain or web from lower to higher trophic levels.
[A]:
energy calories.