1) Deforestation means to ................................. . a) cut the trees. b) throw the garbage. c) balance. 2) One of the renewable energies is ......................... energy. a) waste b) wind c) nature d) public 3) Recycle means to ..................................... . a) increase. b) threaten. c) use again. d) take action. 4) ........................... effect is dangerous for the earth's atmosphere. a) Climate b) Greenhouse c) Balance d) Environment 5) Increasing of the ...................... causes global warming. a) trees b) wild animals c) eco-friendly d) temperature 6) We should buy ................. products. a) eco-friendly b) responsible c) increase d) efficient

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