1) Co 2  ______________ by factories. a) is released b) is release c) are released d) release e) releases 2) The forests _________ by farmers. a) are burn b) is burnt c) are burnt d) burn e) burns 3) Farmers ____________ the forests a) are burn b) is burnt c) are burnt d) burn e) burns 4) Most of the world´s rain _________by forests. a) is make b) is made c) are made d) make e) makes 5) Forests ______ the most of world's rain. a) is make b) is made c) are made d) make e) makes 6) Forest fires __________ by satellites. a) are photographed b) is photographed c) are photograph d) photograph e) photographs 7) Satellites __________ the forest fires. a) are photographed b) is photographed c) are photograph d) photographs e) photograph 8) Millions of animals ______________ by people. a) are kill b) is killed c) are killed d) kills e) kill 9) Extreme weather __________ by climate change. a) is produced b) is produce c) are produced d) produce e) produces 10) Plastic bags ________ by the wind into the sea. a) is blow b) is blown c) are blown d) blow e) blows 11) The photographs _______ by Ryan. a) are taken b) is taken c) are took d) takes e) take 12) Ryan ____________ the photographs. a) are taken b) is taken c) are took d) takes e) take 13) The blogs _____________ by them. a) are write b) is written c) are written d) write e) writes 14) They _________ the blogs. a) are write b) is written c) are written d) write e) writes 15) The pictures ___________ by Nick. a) are produced b) are produce c) is produced d) produces e) produce 16) The zoo _________________ by lots of people. a) are visited b) is visited c) is visit d) visits e) visit 17) Lots of people ________ the zoo. a) are visited b) is visited c) is visit d) visits e) visit 18) Paper ___________ to the recycling centre. a) is take b) are taken c) is taken d) take e) takes 19) Electricity _________ by power stations. a) is produce b) is produced c) are produced d) produce e) produces 20) Power stations __________ electricity. a) is produce b) is produced c) are produced d) produce e) produces

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