the sun heats up the water from oceans, lakes, and rivers and water changes into water vapor by the process of evaporation.Plants also lose water in the form of water vapor from their leaves into the air by the process of transpiration.When the water vapor goes into the air, its start cooling down and form tiny after droplets, then these water droplets get together to form clouds.When the clouds get heavy and cannot hold the water droplets anymore they fall back to the earth in the form of rain.These process is called precipitation.Also the water seeps in the ground this water is available to us in the form of ground water then these water goes into the lakes and oceans. These process is called collection.
Steps to reduce global warming:
plant more trees, reduce, reuse and recycle. , use less hot water.
the thicker layer of greenhouse gases traps more heat. This results in an increase in average temperature of the earth and the earth becomes hotter and hotter. This is called global warming.
In greenhouse, the sun s heat can come in but cannot go out. The trapped heat warms the greenhouse. Similarly, as these gases trap the sun s heat, they are called greenhouse gases co2 ch4 n2o.
the sun s rays warm the earth a part of the sun s rays are absorved by the earth. A part of sun s rays is reflected in space another part is gutted by the greenhouse gases.