Help me out please. Im taking a quiz and im stumped

What is the dew point?
A. The density at which a gas evaporates
B. The temp at which a gas deposits
C. The temp at which a gas condenses
D. The time of day when gas condenses

I'm not sure i'm sorry

El nino is a weather phenomenon caused when warm water from the western pacific ocean flows eastward. part1baan average of 7.7 hurricanes and 3.6 major hurricanes compares to 5 hurricanes and 1.5 major hurricanes from 1995-2005

The enviroment with hedge hogs

Answerfur trade;