Meaning: Trees help to remove pollutants from the air.
Choice of Words: Trees: large plants with a trunk and branches. Help: to make something easier or possible. Clean: to remove dirt or impurities.
Alternative Expressions
Trees are nature's air purifiers.
Meaning: This sentence means that trees are like nature's way of cleaning the air for us to breathe.
Choice of Words: Nature is everything that is found in the world that is not made by humans. Purifiers are things that make something clean. Air is the invisible gas that we breathe.
Trees absorb pollutants from the air.
Meaning: This sentence means that trees take in harmful substances from the air, which helps to make the air cleaner for us to breathe.
Choice of Words: Absorb means to take something in. Pollutants are harmful substances that can make the air dirty. Air is the invisible gas that we breathe.