1/Fill in all the gaps. pollution, rubbish, cans, environment, packaging, protect, is thrown, in danger, prohibited, pollute, bins, clearing up. People get a lot of food from the sea. Nevertheless, we have made the sea a very dirty place. If we are not careful _________ will kill many of the animals and plants in the sea. A lot of rubbish__________ into the sea. Sea animals, fish and birds are __________. Some animals try to eat the__________, they die. Oil from the ships, chemicals and waste __________ the sea and kill whales and dolphins, fish and sea birds. Luckily, many people realize now that we must look after the sea and __________ it. They say polluting the sea should be strictly__________. Groups of people who care about the __________ spend their free time clearing up litter from the beaches. People collect __________, bottles and __________and put them into different __________ for further recycling.