Question 21 MarkThe stratosphere extends from the top of the troposphere up to 80 km above the surface of the earth.AnswerFalseCorrect : The stratosphere extends from the top of the troposphere up to 50 km above the surface of the earth.View full question & answer→
Question 31 MarkThe temperature drops at the rate of 1°C per 185 metres in the atmosphere.AnswerFalseCorrect : The stratosphere extends from the top of the troposphere up to 50 km above the surface of the earth.View full question & answer→
Question 41 MarkThe stratosphere is the lowest layer of the atmosphere.AnswerFalseCorrect : The troposphere is the lowest layer of the atmosphere.View full question & answer→
Question 51 MarkThe earth’s atmosphere contains 99 per cent oxygen, which is essential for life.AnswerFalseCorrect : The earth’s atmosphere contains 21% per cent oxygen, which is essential for lifeView full question & answer→