Page 344 - Demo

Arrow-Puffin-4_Semester-1 Social 343Let%u2019s Recall%u25cf Soil is the Earth%u2019s uppermost layer and is formed by weathering and gradation of rocks.%u25cf The fertility of soil can vary by location and can be improved with manure and fertilizers.%u25cf In India, there are various types of soil including alluvial, black, red, laterite, mountain and desert soil.%u25cf Different types of soil are suitable for different crops.%u25cf Soil erosion is a major issue and can be prevented by planting more trees, not leaving fields barren, stopping over grazing, and using organic fertilizers.A. Choose the right option.1. Cotton is widely cultivated in . (a) alluvial soil (b) sandy soil (c) red soil2. is done in the mountain soil. (a) terrace farming (b) compost (c) fertility3. soil is not fertile. (a) alluvial soil (b) black soil (c) sandy soil4. Laterite soil is used for making . (a) cement (b) stones (c) bricks5. Soil that is loamy and rich in humus is . (a) laterite soil (b) mountain soil (c) sandy soilhumus : organic manure formed by the decomposition of animal and plant matterorganic : something which is free of artificial chemicalsimpermeable : something which does not allow water to pass throughleaching : permeating or penetrating graduallysediments : particles that slowly form a layer of rockfertile : capable of producing vegetationfertilizer : a substance that improves the growth of plantscultivation : preparing land for growing cropsLet%u2019s Learn WordsAssessmentConceptual Learning