Clyde will perform a test on a compost pile. The items in the compost pile are shown here. What scientific questions could Clyde ask about the compost pile? Check all that apply.

Which item breaks down the fastest?
Does decaying fruit smell the worst?
Will the items break down faster if heat is added?
Will enclosing the items in an airtight bag affect the rate of decay?
Is it a good idea to compost garbage?