People started to live on Earth many years ago. They ____ their planet, on the sun, on animals and plants around them. The planet also depends on them. The planet can't be healthy if people go on with their ____ activities. Water is very important for life on Earth. Most of our planet is water but we can't drink most of it. This is because the water in the oceans and seas is ____ water. Also, most of Earth's ____ water is difficult to use because it is ice or ____There is only a small ____ of water in rivers and lakes that is easy to use. There is also water in the air. Sometimes this water ____ into clouds and rain. If it is very cold, this water can ____ and turn into snow. Snow and rain are very important for life on ____, because this is the water that plants need and that people drink.

Planet Water part 1

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