when you save old things to use the materials again, when it rains a lot and rivers get too big, when you use things in an unnecessary way, the thing which protects the earth from the sun, when it doesn’t rain and there is no water, when you stop using something or use very little, a long line of very big hills, an area with a lot of trees, plants and animals, an area with a lot of sand, but not many plants and almost no water, a piece of land with water all around it, an area between two hills, an area next to the sea with sand, where some people go to spend their holidays, a big, cold area that covers the land and sea around the North and South Pole, when ice turns to water, the process of making the air, water or land worse, with chemicals, for example, an accident when oil comes out of its container, for example at sea.
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