Q. Consider the following statements:
Which of the above statements is/are correct?
Q. Consider the following statements:
Which of the above statements is/are correct?
The correct option is B
2 only
Explanation:
Statement 1 is incorrect: The zone separating the troposphere from the stratosphere is known as tropopause.
Statement 2 is correct: Density is highest near the surface of the earth and decreases with increasing altitude. This is due to the effect of gravity.
Statement 3 is incorrect: The stratosphere contains the ozone layer that shields the earth from harmful UV radiations.
Extra Information: The column of the atmosphere is divided into five different layers depending upon the temperature conditions. They are : troposphere, stratosphere, mesosphere, thermosphere and exosphere. Troposphere is the lowermost layer. The temperature in the mesosphere again starts decreasing. Radio waves transmitted from earth are reflected back to the earth by this layer.
2 only
Explanation:
Statement 1 is incorrect: The zone separating the troposphere from the stratosphere is known as tropopause.
Statement 2 is correct: Density is highest near the surface of the earth and decreases with increasing altitude. This is due to the effect of gravity.
Statement 3 is incorrect: The stratosphere contains the ozone layer that shields the earth from harmful UV radiations.
Extra Information: The column of the atmosphere is divided into five different layers depending upon the temperature conditions. They are : troposphere, stratosphere, mesosphere, thermosphere and exosphere. Troposphere is the lowermost layer. The temperature in the mesosphere again starts decreasing. Radio waves transmitted from earth are reflected back to the earth by this layer.
