Are the trees threatened only by pollution? is deforestation caused by pollution? in many parts of the world people are to blame for that. the great rainforests of asia and south america are being destroyed for firewood and building material. people do not realize that a forest is more than a collection of trees. it's a complex community of plant and animal life. trees are important because they provide home for many other plants and animals too. they protect the flowers which grow on the forest floor, provide food for insects, reptiles, birds and mammals. they protect the soil from the wind and the rain. most important of all - the forests are the lungs of the planet. they produce the oxygen which we breathe. man's unrestricted cutting of trees disturbs the natural balance. something must be done. , ! нужно перевести предложения, но нужен именно нормальный ))