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Question 56Give a reason for each of the following.(a) Electronic industries are crucial for India's economic development.(b) Mini-steel plants do...
Question 57Rajesh is a class X student, working on a project for school. He has a section on byproducts and includes a write-up on shoe polish.(a)...
Question 58India has a long coastline of 5,560 kms., having access to the sea on three sides with 11 major and 168 minor/intermediate ports. India...
Question 59Study the given map and answer the questions that follow.(a) Name the highway project shown on the given map.(b) State any two economic...
Question 60Study the picture given below and answer the following questions:(a) State whether the above station experiences a maritime or a...
Question 61Although landfills are the cheapest waste management strategy, they are often touted as harmful to the environment.Name any three ways by...
Question 62Below are the two pictures of an efficient waste reduction and waste management system.(a) Note the pictures carefully to mention the...
Question 63In many parts of the world, man has disturbed the ecological balance. The factors responsible are deprivation of natural habitat and...
Question 64(a) Name the agent responsible for the erosion seen in the picture.(b) What may be done to restore the soil in such areas?
Question 65Answer the following:(a) Name two major eutrophication-causing nutrients.(b) Based on your answer, how do these nutrients cause...
Question 66When mixed in water, DDT accumulates in the cells of various aquatic organisms. Small fish consume zooplanktons that have DDT in them....