Water exists in all physical states. Water exist as vapors, snow and droplets.
because during a water cycle only the state of the water molecules are changed i.e. first from liquid to vapour and then to solid (snow and hailstorm) or liquid (rain). since there is a change only in the physical state of water and there is no change in the chemical properties of the water molecule it is a physical change.
water
Deforestation affect water cycle in a serious way. It slows down the process of transpiration.
Pesticides pollute the water. It affects water cycle adversely.
Water cycle can be interrupted by deforestation. Water pollution can also affect it.
Rain is in the liquid state of matter in the water cycle.
Yes
Yes water cycle affect weather pattern and climate. They are changed after precipitation.
no
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Radioactivity affect the water molecules. Radioactivity makes it harmful
It helps with the water cycle, but it's not the basis of it.