Question

What is the most important factor driving the water cycle?
A. plants and trees in the biosphere
B. the surface features of Earth
C. water in the hydrosphere
D. the energy from the Sun

Answer 1

The most important factor driving the water cycle is **D. the energy from the Sun**. The Sun's energy causes evaporation of water from the Earth's surface, which is a key process in the water cycle, leading to condensation and precipitation. This solar energy drives the movement of water in its various forms through different environmental compartments.