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Q.55. How pollution can be checked ? - Q.56. What are the main problems of cotton textile industry? - Q.57. What is the contribution of industry in the National economy of the country? - Q. 58. What are the impact of pollution on human life? - Q. 59 (a) Write short notes on any four means of communication. - Q.60. What is Transportation ? Explain its types in brief. - Q.61. Explain the measures adopted to promote exports in India. - Q.62. Explain the earthquake, write its causes and effect and measures to controlit. - Q.63. Write the effects of flood. -