Question

26. Define hydrological cycle. Explain the distribution of freshwater resources on the earth.​

Answer 1

Answer:

Answer: The global hydrological cycle is powered by solar energy. It is a closed system, in continual circulation. This means that there is a definite amount of water in the system and that this amount does not change. ... Only 3% of water on the surface is fresh; the remaining 97% resides in the ocean.

Answer 2

The water cycle involves the exchange of energy, which leads to temperature changes. When water evaporates, it takes up energy from its surroundings and cools the environment. When it condenses, it releases energy and warms the environment. These heat exchanges influence climate.

The evaporative phase of the cycle purifies water which then replenishes the land with freshwater. The flow of liquid water and ice transports minerals across the globe. It is also involved in reshaping the geological features of the Earth, through processes including erosion and sedimentation. The water cycle is also essential for the maintenance of most life and ecosystems on the planet.