The coriolis effect is caused by which of the following?

gravity
earth’s revolution
earth’s rotation
radiation from the sun

which of the following statements is most accurate?

warm air exerts more pressure on the land than cold air.
warm air sinks.
warm air is less dense than cold air.
warm air is denser than cold air.

the first question's answer is "earth's rotation'

            the second question's answer is "Warm air is less dense than cold air"

Explanation:

the author develops a cold, and scared tone. making the reader shudder with fear, and suddenly become cold. i'm guessing that he's writing a scary novel, or maybe about a chilly december night.

what makes a hero is someone who tries and acres and then heps to save people