Answer:
The water cycle is driven by energy from the sun. Liquid water is evaporated and changed into a gas. In this process, energy is absorbed (endothermic). The gaseous vapour rises and circulates in the atmosphere, cools and changes back into a liquid. This process is called condensation and releases energy (exothermic). Tiny droplets of water in the atmosphere accumulate to form clouds, which can return the water to Earth as precipitation, namely rain or snow
