What is the relationship between life expectancy and the natural increase rate?

Explain how the density of ocean water is affected by temperature and how this results in major ocean currents distributing heat away from the equator toward the poles?

Amountain created from tectonic activity would be considered which type of landform ? a) primary landform b) secondary landform

Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz