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: global warming is when worldwide temperature increases.

A: carbon dioxide causes global warming.
****
Q: Fact: Bacteria are the most diverse and abundant group of organisms on Earth.

A: Bacteria names.
****
Q: Fact: Chloroplasts contain the green pigment chlorophyll.

A:
Chloroplasts green.
****