400
Lesson 400 of 500 · Extra Passages
⭐ 30 XPPollution Part 5
📖Story Brief #400
Pollution happens when harmful things mix with our air, water, or land.
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Pollution happens when harmful things mix with our air, water, or land. For example, when cars drive, they release smoke that can make the air dirty. This smoke can hurt animals and plants. Another type of pollution is when trash is thrown into rivers, making the water unsafe for fish and people. It’s important to keep our environment clean so that everyone can be healthy and happy!
Check Your Understanding
Question 1
1 of 2What is one way air can become polluted?
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