4 Popraw podkreślone wyrazy w zdaniach 1-7. 1 If people produced less extinction, the planet would be in better condition. 2 If you use scientist objects, you will produce less waste. 3 Most rubbish are warning people about global warming and climate change. 4 The global warming of animals is a serious problem. 5 People in different countries share ideas on how to produce the amount of waste. 6 If you have your own rubbish you, don't need to buy plastic bags. 7 Even replacing plastic drinking scientists with metal ones can be an important step towards saving the environment.