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Students will think that environmental pollution is one of the largest killers because it is more than 700 per year, only 10,000 people have died as a result nearly 300 air pollution more than 10,000 people were killed and 20 % of the people to drink, clean drinking water

Schoolmates can think the environmental pollution is the biggest murderer is because it creates more than 700 ten thousand dead every year, only the air pollution creates nearly more than 300 ten thousand dead, 20% people do not drink the clean potable water

Students may think that environmental pollution is the biggest killer is because it caused the death of more than 7 million people each year, causing air pollution alone killed more than 3 million people, 20% people drink clean water

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