WAVE When Rain Hits The Land 19 Page 2 BACKGROUND: When rain hits the land, it either flows over the surface of the land, or it is absorbed by the land. Whether rain becomes groundwater or runoll depends on the type of land it encounters.

When sand is added to water it either hangs in the water or forms a layer at the bottom of the container. Sand therefore does not dissolve in water and is insoluble. It is easy to separate sand and water by filtering the mixture. Salt can be separated from a solution through evaporation.

24 hours

The impact of rain water striking the surface can cause soil erosion. Erosion is a concern for farmers as their valuable, nutrient rich top soil can be washed away from rain water. It can also weaken structures such as bridges or wash out roads. Vegetation can decrease the amount of soil that is eroded during a rain.

Rain is important . There is no rain we can’t survive, If there is no rain then the water content may decrease day by day. All the greenery will be disappeared and earth became a desert. and the temperature rate also increase and it cause global warming.

As the clouds continue to grow and when they cannot bear the weight of water droplets, it leads to precipitation. This process of rising air is called convection and the type of rainfall which occurs during peak summer is called convectional rainfall.

Showers in late afternoons during summer is due to convection. During summer as land mass gets heated up, warm air rises up and pulls up moisture from the water bodies on earth surface. When the rising air in clouds cools down it precipitates as rain and hail.

Millimeters to inches conversion table