Trees and plants
Trees and plants are very important to us. There are several reasons. Firstly, they can cool our cities in summer and clean the air. Secondly , they provide oxygen to us, so they are good to our health.Thirdly,they can reduce sound pollution. What's more, they provide fruits and food to us. In a word, we can't live without trees or plants.
But people throw rubbish away every day so the plants are damaged or polluted. What's worse, people cut down a lot of trees ,so in some places good earth is becoming desert.
What should we do then? We should not set up so many factories in order to protect the environment. However, we should plan trees and plants to make our earth more beautiful.
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