Trees help reduce noise pollution.
Meaning: This sentence is saying that trees are important for our health because they help to reduce noise pollution.
Choice of Words: Trees are large plants that have a trunk and branches. Help means to make something easier or possible. Reduce means to make something less. Noise is loud, unpleasant sound. Pollution is the presence of harmful or unwanted substances in the environment. When we put these words together, it means that trees help to block out noise and make it quieter.
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