Read the definition and type in one word (the first letter is given).
1. A noun that means everything that is around us: the plants, the water, the air, the animals, etc. – e
2. A verb, the synonym of save. – p
3. A noun that means the process of going dirty. – p
4. A noun that means a process of losing forests because of different factors such as cutting trees or fires. - d

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