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Word, Pewer of land with few plants, vapour : moisture suspended in the air, conservation :, afforesiation : the planting of an area with trees to form a forest, desert: waterless portion, preservation of the natural environment, existence : be real present, degeneration :, became worse as weaker., Exercise-Time, A. Tick (/) the correct answer:, 1., are very important for us., (a) tree, (b) wood, (c) stone, 2., is made from the wood of trees., (a) wall, (b) furniture, tc) pillar, 5., We use, in a number of ways., (a) rubber, (b) soil, (c) stone, 4., Trees help in the conservation of, (a) water, (b) air, O (c) soil, 5., The General Sherman is, feet tall., (b) 262, O (c) 272, (a) 250, 6., The new cells formed are of, kinds., (b) three, (c) four, (а) two, В., Fill in the blanks:, Trees help in the Conservation of soil., The gos, spread of déyelopmentand urbanization, the vast'land have been Cleaved off the, trees, It has resulted in thedegeneration of soil. When it rains, the upper Layer, soil is washed away with rain oter, Write True or False:, 1., of trees help in binding the soil together. But with the, 2., of, 3., as this is due to the deforestation., С., 1., The furniture is made from the woods of trees., 123, Scanned with CamScanner
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2., In India, 51% of the total land surface is under forest., 3., Trees provide shelter to many animals and birds., The biggest tree is the General Sherman., We cannot know the age of a tree., 4., 5., D., Both the statements given in the columns are connected with one another. Match them, properly :, Column!, Column II, 1., Trees help in the prevention of, (a) Trees stop the free flow of water and their roots, sudden flood., hold the soil together., 2., Some trees are useful for us, (b) The surface soil under trees in soft like a, in various ways., sponge and absorbs rain water., (c) Rain clouds are cooled when they pass over 3, 3., Rainfall over forests is, greater than other places., forests. So there is more rain in these areas., 4., Trees help to hold the, (d) This is because the leaves of trees breathe out a, lot of water vapour, ground soil in place., 5., One a hot day, it is cooler under, (e) The sap of the Cow tree is used in place of milk2), the tree than inside a building., Е., Answer the following questions:, How is desert formed? How can it be prevented?, How do trees help in bringing rain?, 3., Name two trees from which we get valuable life-saving medicines., 4., How are trees important for birds and animals?, 5., Why should one third of the total land surface be covered with trees?, 6., How do trees help in the conservation of soil?, A What is 'General Sherman? Give details about it., How is the life of a tree found out? Explain., 8., 9., Which is the oldest tree on the earth? What is its age?, Vocabulary, A., Write the antonyms of the following words:, un fortunately, 1., fortunately, :, useful, warthless, erterioy, difficulty, 2., inside, 4., easily, 5., destruction, 124, Scanned with CamScanner
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3. Change these words into nouns using -tion' or'-sion' endings:, natural, unnatural, Jatest, defoxiestation, 6., 7., earliest, 8., afforestation, :, wibarizotion, abserbtion, erarion, destrruction, C Use the following words in sentences of your own to make out the difference:, 1., urbanise, 2., form, formation, Puesovation, decision, conservation, 3. absorb, 4., preserve, 5., erode, 6., decide, 7., destruct, 8., conserve, 1., root:, route:, 2., way :, weigh :, 3., rain :, reign:, 4., ring:, wring:, 5., made:, maid:, 6., wood :, would:, Make atleast four words using the letters of the words given :, ENVIRONMENT, ATMOSPHERE, AFFORESTATION, CONSERVATION, 125., Scanned with CamScanner
