1) If people throw plastic bags, plastic bottles, and garbage in the river, a) the air will have noise pollution.  b) this will cause clear cutting. c) the water will have pollution. d) The environment will have noise pollution.  2) If people listen very loud music from pick-ups and motorbike horns,  a) The air will have pollution b) The environment will have noise pollution  c) The water will have pollution d) This will cause clear cutting  3) If the earth is full of smoke from cars or burn garbage,  a) The air will have pollution. b) The environment will have noise pollution. c) This will cause clear cutting. d) The water will have pollution. 4) If people cut trees for wood or buildings, a) The environment will have noise pollution b) This will cause clear cutting  c) The water will have pollution  d) The air will have pollution.

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