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类别全部 - environment - global warming - materials - pollution

作者：Mark Heng 13 年以前

1343

Man and his impact on the environment

Man and his impact on the environment

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Man and his impact on the environment

Positive Impact

Man-made materials

Ceramics

Plastic

Better food, medicines and machines

Negative Impact

Pollution

Results

Global warming

Depletion of ozome layer

Acid rain

Caused by

Human Waste

Harmful Chemicals

Littering