What is the harm of people when they breathe dirty air

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Choose the letter A, B, C or D to answer these following questions

People need to breathe. If they don’t breathe, they will die. But how clean is the air people breathe? If they breathe dirty air, they will have breathing problems. Plants and animals need fresh air too. A lot of the things in our lives create harmful gases and make the air dirty, like cars, motorbikes, and factories. Dirty air is called polluted air. Air pollution can also make our Earth warmer.

Question: What is the harm of people when they breathe dirty air?

They will suffer diseases related to breathing.

They have no problem.

The environment is polluted

Many animals and plants will die.

Giải thích

Đáp án: A

Giải thích: Dựa vào câu: “If they breathe dirty air, they will have breathing problems”.

Dịch: Nếu họ hít không khí bẩn, họ sẽ mắc các vấn đề liên quan đến hô hấp.