Q.

Our atmosphere is divided into layers.

A. Two
B. Three
C. Four
D. Five
Answer» D. Five
Explanation: Earth has five primary layers, which are the troposphere, stratosphere, mesosphere, thermosphere and exosphere. From the Earth upwards, those layers are: Troposphere: 0 to 12 km: Stratosphere: 12 to 50 km; Mesosphere: 50 to 80 km; Thermosphere:80. to 700 km; Exosphere: 700 to 10,000 km.
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