MCQ Chapter 2 Geography Class 11 Maharashtra Board Weathering and Mass Wasting 1. What sound is associated with shattering in hot deserts? Hiss Pistol firing Rumble CrackleQuestion 1 of 202. What is block disintegration? Dissolving of minerals Breaking of rocks along joints into blocks Expansion of salts Chemical reaction with waterQuestion 2 of 203. What is exfoliation in weathering? Formation of new minerals Successive removal of outer rock layers Dissolving of salts Freezing of water in cracks EXPLANATION:foliation is the successive removal of outer layers of rocks due to pressure release or unloading.Question 3 of 204. Where are dome-shaped exfoliation structures commonly found? Coastal areas Deccan Plateau Himalayan foothills Arid desertsQuestion 4 of 205. What is biological weathering? Breakdown by chemical reactions Disintegration by living organisms Expansion due to heat Dissolving by waterQuestion 5 of 206. How do plant roots contribute to biological weathering? They dissolve minerals They widen cracks and break rocks They oxidize iron They reduce rock volumeQuestion 6 of 207. Which organisms create chemical micro-environments for weathering? Trees Algae, moss, lichens, bacteria Burrowing animals FishQuestion 7 of 208. What human activity accelerates weathering? Agriculture Mining and quarrying Urbanization FishingQuestion 8 of 209. What causes acid rain that damages monuments? Burning of coal and petroleum Deforestation Volcanic eruptions Soil erosionQuestion 9 of 2010. Which material dissolves in water according to the experiment? Candle Glass test tube Chalk NoneQuestion 10 of 2011. What happens to a heated glass test tube when cold water is poured on it? It dissolves It cracks It expands It remains unchangedQuestion 11 of 2012. What happens to a candle when lighted? It dissolves It cracks It melts It hardensQuestion 12 of 2013. In which climate is chemical weathering most rapid? Arid Humid Polar TemperateQuestion 13 of 2014. Which rock layer experiences the most weathering in a stratified structure? Innermost layer Outermost layer Middle layer Bottom layerQuestion 14 of 2015. Which rock is highly resistant to chemical weathering but fractures physically? Limestone Granite Quartzite SandstoneQuestion 15 of 2016. Why do rocks with vertical strata weather faster? They are more compact They are loosened by temperature changes They resist water penetration They are chemically stableQuestion 16 of 2017. What does weathering provide for erosion? Energy Transporting medium Materials to be eroded New mineralsQuestion 17 of 2018. What is mass wasting? Chemical breakdown of rocks Down-slope movement of soil and rock by gravity Formation of sedimentary rocks Expansion of mineralsQuestion 18 of 2019. What is the main force responsible for mass wasting? Wind Water Gravity HeatQuestion 19 of 2020. Why are hilly areas more vulnerable to mass wasting? They have gentle slopes They have considerable elevation They lack water They are flatQuestion 20 of 20 Loading...
Leave a Reply