What is the colligative property that means that a solution typically has a measurably lower freezing point than a pure solvent alone?
a. osmotic pressure
b. vapor-pressure lowering
c. freezing point alleviation
d. freezing point depression

Iam not going to tell you

The answer would be true

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.

Ithink it is +1hope this