Q: Fact: the moon 's surface contains many craters
Question: the moon 's surface contains many

A: ground bumps

Q: Fact: some adult animals lay eggs
Question: This animal evolved to reproduce using protective containers instead of live little entities:

A: platypus

Q: Fact: a thermometer is used to measure temperature
Question: A person can know if they need a down vest by checking the

A: thermograph

Q: Fact: ferrous metals contain iron
Question: Ferrous metals can comprise items such as

A:
Fe armor