1) Which ones are the three "R"s? a) reduce, reuse, reproduce b) reduce, reuse, recycle c) Clean, reuse, recycle 2) Which materials can we recycle? a) plastic, glass, cans b) plastic, bananas, metal c) metal, wood, vegetables 3) How can we stop air pollution? a) smoke b) Do not drive your car if it is not necessary.  c) Use deodorants 4) How can we stop the water pollution? a) Do not throw garbage in the rivers.  b) Throw garbage in the rivers.  c) Use oils. 5) How to stop land pollution? a) Use fertilizers b) Pick up your trash. c) cut trees

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