Given a statement, generate a question such that the answer is contained in that statement.

[EX Q]: Algae play significant roles as producers in water areas.
[EX A]: Algae play significant roles as producers in what area?

[EX Q]: Antibiotics and vaccines are being stockpiled against another potential danger in the environment
[EX A]: What are being stockpiled against another potential danger in the environment?

[EX Q]: breathing begins with breathing in air or oxygen
[EX A]:
What type of air does breathing begin with?