Match the parts of these sentences. write the number (1, 2, the first part: 1. if people want to survive, they must do their best  2. the protection of the environment requires the  3. you may also join “friends of the earth trust”, which is an educational charity set up to help people of all ages become aware of  the second part: 1) about on tv, radio and in newspapers. 2) to solve these problems. 3) to save our planet. 4) but the whole earth. 5) cooperation of all nations. 6) environmentalists from different countries. 7) movement for nature conservation. 8) the threats to our environment. 9) destruction of the environment. 10) cities and towns clean. 11) put it into a litter bin. 12) pavements, walls or trees.