Question

what is water cycle and explain it

Answer 1

Hi
Friend.......

The water cycle, also known as the hydrological cycle or the hydrologic cycle, describes the continuous movement of wateron, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time but the partitioning of the water into the major reservoirs of ice, fresh water, saline water and atmospheric water is variable depending on a wide range of climatic variables. The water moves from one reservoir to another, such as from river to ocean, or from the ocean to the atmosphere, by the physical processes of evaporation, condensation, precipitation, infiltration, surface runoff, and subsurface flow. In doing so, the water goes through different forms: liquid, solid (ice) and vapor.

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.

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Answer 2

The process in which water evaporates from water bodies, condenses in the atmosphere to form clouds and returns back to the Earth in the form of precipitation.

Explanation:
As the temperature raises the water evaporates from the water bodies.Hot water vapour being light raises up where the temperature is cooler. There the temperature is cooler so it condenses on dust particles which join to form a cloud. As the cloud gets heavier, water in the form of rain/hail/snowfall returns to the Earth.