kheyonajohnson17 kheyonajohnson17
  • 24-03-2020
  • Biology
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Which layer of Earth's atmosphere merges with the vacuum of space?
O
A. Stratosphere
O B. Exosphere
O C. Thermosphere
O D. Troposphere
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ahsan57900 ahsan57900
  • 24-03-2020

Answer:

Option B. Exosphere.

Explanation:

Exosphere is the last layer of atmosphere which is present at the height 700 to 10000 km from earth surface. This layer is thin as compared to other layers of the atmosphere. The layer of exosphere is composed of two elements i. e. helium and hydrogen. The temperature of exosphere is 1700 degree Celsius at daytime and becomes cold at night.

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