1) The process of water or wind carrying away soil is called ___. a) Soil Conservation b) Weathering c) Soil Erosion d) Erosion By wind 2) The topsoil has ____ and is the fertile layer of soil. a) Humus b) Rocks 3) Clearing of forests by Humans a) Overgrazing b) Deforestation c) Afforestation 4) _____ by cattle exposes the soil by removing the plant cover. a) Farming b) Overgrazing 5) _____ is made up of small particles of broken down rocks, remains of dead plants and animals, water and air. a) Wethering b) Erosion by water c) Soil 6) Soil also contains tiny living organisms such as ______ a) Plants, Rocks, water and air b) Animals like tiger, elephant and bear etc... c) Insects, worms and bacteria 7) Soil is very important for life. a) True b) False 8) Which of these does not cause weathering of rocks? a) Rain b) Force of flowing water c) Pollution d) Plants 9) Which of these can be caused by soil erosion by water? a) Drought b) Flood c) Cyclone d) Earthquake 10) Which of these ways of soil erosion in not cause by humans? a) Fast flowing river b) Deforestation c) Overgrazing d) Ploughing 11) What is the meaning of Soil Erosion? a) The protection of soil against erosion. b) Breaking down of rocks into small pieces. c) The process of wind or water carrying away soil. 12) Deforestation, farming and overgrazing decreases soil erosion. a) True b) False 13) Wind erosion is greatest in wet regions, particularly in polar regions. a) False b) True 14) ____ the soil loose, which might lead to the soil being eroded easily. a) Overgrazing b) Ploughing leaves c) Wind 15) The wind also plays an important role in soil information a) False b) True 16) ______ grow in soil and use minerals present in it. a) Air b) Worms c) Plants 17) The _____ layer of the earth is mostly soil a) Middle b) Upper  c) Bedrock 18) What is soil conservation? a) The process of water or wind carrying away soil b) Breaking down of rocks into small pieces c) The protection against erosion 19) Soil erosion by water is greater in _____ as water flows down faster. a) Hilly Areas b) Valley c) Plains 20) Soil is formed by the breaking down of rocks into small pieces by a process called ______ a) Weather b) Waethering c) Waether d) Weathering 21) The formation of a layer of soil that _____ thick takes more than hundred years. a) 2 cm b) 4 cm c) 3 cm d) 1 cm 22) Planting trees is known as _____. a) Afforestation b) Deforestation 23) Strong embankments made along river banks. a) Shelter Belts b) Terrace Farming c) Soil cover d) Bund 24) Growing hedges or trees along the edges of farmland as _______ a) Step farming b) WindBreakers 25) Grass grown on slopes prevents ________ caused by water flowing down the slopes. a) Soil Erosion b) Soil Conservation c) Erosion by wind

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