1) Leo Baekeland invented the world's first synthetic plastic in 1907 a) Leo Baekeland was invented the world's first synthetic plastic in 1907 b) The world's first synthetic plastic was invented by Leo Baekeland in 1907 c) In 1907 the the world's first synthetic plastic was invented 2) Students should study environment problems at school a) Environment problems should be studied at school b) Students should be studied environment problems at school c) At school should be studied environment problems 3) Mothers should teach children not to throw litter in the streets a) The children should be teached not to throw litter in the streets b) Children should be teached not to throw litter in the streets c) To throw litter in the streets children should be teach 4) In developed countries authorities will lead everybody to cooperate a) In developed countries authorities will be leaded everybody to cooperate b) Everybody will be leaded to cooperate by developed countries c) Everybody will be leaded by developed countries to cooperate  5) Plastic waste is harming animals a) Animals are harmed by plastic waste b) Animals are being harmed by plastic waste c) Plastic waste has been harming animals 6) Plastic is polluting our oceans a) Plastic is being polluted by the oceans b) Our oceans are being polluted by plastic c) Our oceans are polluted by plastic 7) A globbal effort will reduce the harm caused by plastic a) The harm caused by plastic will be reduced by a global effort b) A globbal effort will be reduced the harm caused by plastic c) The harm caused by plastic will reduced by a global effort 8) Manufacturers produce billions of bottles a year a) Manufacturers have produced billions of bottles a year b) Billions of bottles are produced a year by manufacturers c) Billions of bottles are produced by manufacturers a year 9) Plastic has been used for many purposes over the last 30 years a) People have used plastic for many purposes over the last 30 years b) Over the last 30 years plastic has been used for many purposes c) Plastic is used for many purposes over the last 30 years 10) It has harmed hundreds of species of marine wildlife. a) Hundreds of species of marine wildlife is harmed b) Hundreds of species of marine wildlife has been harmed c) It was harmed hundreds of species of marine wildlife

Plastic Pollution

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