Question

Most of the water vapor in Earth's atmosphere comes from _____.

sublimation and transpiration
infiltration and surface runoff
rain, sleet, hail, snow, and freezing rain
oceans, seas, lakes, and rivers

Answer 1

Most of the water vapour in the earth's atmosphere comes from oceans, seas, lakes and rivers. Heat from the sun causes water to evaporate from these water bodies. Once water evaporates it becomes a gas. Water vapour rises, cools and condenses to from clouds. Cloud formation leads to precipitation (rain, sleet, snow, hail).