`1.`

1. pollution

2. contamination

3. death

4. poisonous

5. polluted

l live on the outskirts of a city in viet nam . three years ago , my neighbourhood was very clean anh beautiful , with paddy fields anh green trees . however ,in the last two years ,some factories have appeared in my neighbourhood . they have caused serious waste pollute by dumping industrial waste into the lake the contaminated waste has led to the death of aquatic animals anh plants . also ,tall residential buildings have replaced the paddy fields . more people result in more cars and motorcycles poisonous fumes from these vehicles are serious air pollutants.

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