21. In the Atmosphere of earth, the boundary between the Troposphere and Stratosphere is called ____.
Correct Answer: B. Tropopause
Explanation: The Tropopause is the boundary separating the Troposphere from the Stratosphere, where temperature stabilizes before increasing in the Atmosphere of earth.
22. In the Atmosphere of earth, temperature ______ with height in the Stratosphere.
Correct Answer: B. Increases
Explanation: In the Stratosphere, temperature increases with height due to absorption of UV radiation by the ozone layer.
23. Which layer contains the ozone layer in the Atmosphere of earth, absorbing UV rays and warming the layer?
Correct Answer: C. Stratosphere
Explanation: The Stratosphere contains the ozone layer, which absorbs harmful ultraviolet rays and warms the layer.
24. The temperature in the Atmosphere of earth, at the upper end of the Stratosphere is ____°C.
Correct Answer: C. 0
Explanation: The upper Stratosphere, in the Atmosphere of earth, reaches approximately 0°C due to ozone absorption of UV rays.
25. Stratosphere temperature ranges from ____°C to 0°C.
Correct Answer: B. -55
Explanation: The Stratosphere temperature ranges from -55°C at the lower boundary to 0°C at the top.
26. Temperature ______ with height in the Mesosphere.
Correct Answer: A. Decreases
Explanation: In the Mesosphere, temperature decreases with height, making it the coldest atmospheric layer.
27. The coldest layer of the atmosphere is ____.
Correct Answer: C. Mesosphere
Explanation: The Mesosphere is the coldest layer, with temperatures dropping to about -90°C at the top.
28. Mesosphere temperature ranges from 0°C to ____°C.
Correct Answer: C. -90
Explanation: The Mesosphere in the atmosphere of earth, has a temperature range from 0°C at the bottom to -90°C at the top.
29. Temperature ______ with height in the Thermosphere.
Correct Answer: B. Increases
Explanation: In the atmosphere of earth, temperature increases with height in the Thermosphere, reaching extreme values due to absorption of high-energy radiation.
30. Temperature in the Thermosphere, in the atmosphere of earth, ranges from -90°C up to ____°C.
Correct Answer: C. 1500 or more
Explanation: The Thermosphere can reach 1500°C or higher, as molecules absorb intense solar radiation.
31. Temperature in the Exosphere ranges from 1500°C up to ____°C.
Correct Answer: C. Gradually merges into space
Explanation: The Exosphere gradually merges into outer space, with no distinct upper boundary for temperature.
32. The only layer of Earth’s atmosphere where temperature gradually stabilizes is ____.
Correct Answer: D. Exosphere
Explanation: The Exosphere is the outermost layer where temperature stabilizes gradually as it merges into space.
33. In which layer of the atmosphere of earth Meteors burn up?
Correct Answer: C. Mesosphere
Explanation: Meteors burn up in the Mesosphere due to friction with the thin air at high altitudes.