Which question cannot be answered through making measurements? A. How does a decline in honeybees affect the pollination of crops?
B. Should humans stop using chemicals that harm
honeybees?
C. How much has the honeybee population declined in North
America?
D. Which chemicals produced by humans cause harm to honeybees?
SUBMIT

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.