Go around class 2 times, hop 2 times, hug your friends
Good job!
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In big cities like Ho Chi Minh and Hanoi, there are a lot of factories and vehicles. So, the air here is polluted.
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The second solution to air pollution is that we should use more green energy such as wind energy, solar energy, and hydro energy.
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We should also exercise every day to stay healthy.
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The third solution to air pollution is that we plant more trees for more oxygen.
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The first cause of air pollution is harmful gases and smoke from vehicles such as cars, motorbikes, trucks, buses and airplanes. The second cause of air polluti
What are the main factors to air pollution in big cities?
Harmful gas and smoke
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The first solution to air pollution is that we should use more bicycles to reduce carbon dioxide.
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Air pollution also causes acid rain, which destroy buildings and forests.
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Air pollution happens when there are a lot of harmful gases and smoke in the atmosphere.
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Haha
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If we live in big cities, we should eat fruits and drink juice regularly to clean the lungs.
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Air pollution causes many health problems such as dizzness, headache, skin irritation and blackouts.