Trees clean the air and water.

Meaning: This sentence means that trees help to remove pollutants from the air and water, making them cleaner and healthier.

Choice of Words: Trees are large plants with woody stems and branches. Clean means to make something free from dirt, germs, or other harmful substances. Air is the mixture of gases that surrounds the Earth. Water is a clear, colorless liquid that is essential for life.

Alternative Expressions

Trees purify the air and water.

Meaning: This sentence is saying the same thing as the first sentence, but it uses a different word to describe what trees do to the air and water.

Choice of Words: **Purify** means to make something clean and free of impurities. **Air** is the mixture of gases that we breathe. **Water** is the clear liquid that we drink and use for washing. When you put these words together, it means that trees help to make the air and water purer.

Trees cleanse the air and water.

Meaning: This sentence is also saying the same thing as the first two sentences, but it uses a different word to describe what trees do to the air and water.

Choice of Words: **Cleanse** means to make something clean and free of impurities. **Air** is the mixture of gases that we breathe. **Water** is the clear liquid that we drink and use for washing. When you put these words together, it means that trees help to make the air and water clean.

Related Expressions