The intensity of radiation from the sun allows water to cycle between liquid and vapor, which is a dynamic process of earth called the
a. tectonic cycle
b. rock cycle
c. water cycle
d. carbon cycle

Witch layer of the atmosphere has the most air pressure

What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors

The process by which liquid water changes into water vapour is called what ?