Water is a source of life, and humans need lots of water to survive, thrive, and flourish. We use it for drinking, cooking, and hygienic uses, which are very important uses for water. But we use more water than we realize. We use it to quench the thirst and wash our livestock, water our crops, and we also use many gallons for simply entertainment, such as water parks and pools. Water however, is not an infinite source. But, we can get it from many different sources. From the ground, from the lakes and rivers, and from the clouds, there are many different ways to find water. It starts with the clouds. They precipitate the droplets of water we know as rain, and the tiny droplets fall to many different places.
You may have direct rainwater as a source, but this rainwater can seep into the ground to become groundwater, into our lakes and oceans, and into plants. Which means that you can get more water from certain plants, from the ground, and from lakes and rivers as well. Then some of the water will be evaporated again, going back into the atmosphere. In conclusion, water is a very valuable resource for humans to have and it is attained and used in many different ways.
(This might not be great but you can rewrite it a bit so it fits your work. I'm not sure the grade level this is in or the style of writing you have.)