Question 1011 MarkDefine reforestration.AnswerReforestation is the process of restoring a forest, that once existed, but was removed at some point of time in the past.View full question & answer→
Question 1021 MarkWhat is cultural/ accelerated eutrophication?AnswerCultural/ accelerated eutrophication is a phenomenon of man-induced nutrient enrichment and accelerated ageing of the water bodies.View full question & answer→
Question 1031 MarkThe use of incinerators is crucial for the disposal of hospital waste. Justify.AnswerHospitals generate hazarduous wastes that contain harmful chemicals, disinfectants and pathogenic microbes; such wastes require disposal using incinerators.View full question & answer→
Question 1041 MarkWhat is the expected rise in the global temperature by the year 2100?AnswerIt may rise by 1.4-5.8 °C.View full question & answer→
Question 1051 MarkWhat percent of sewage water has impurities that make it unfit for human use?Answer0.1 percent.View full question & answer→
Question 1061 MarkInspite of being non-polluting, why are there great apprehensions in using nuclear energy for generating electricity?AnswerDespite being non-polluting, there are great apprehensions in using nuclear energy for generating electricity because of: Danger of accidental leakage. Lack of safe disposal methods of radioactive waste. View full question & answer→
Question 1071 MarkName any two metals found in the catalytic converter.AnswerPlatinum and palladium.View full question & answer→
Question 1081 MarkWhat is meant by deforestation?AnswerDeforestation is the conversion of forested areas into non-forested ones.View full question & answer→