- What is the lowest layer of Earth’s atmosphere called?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: A) Troposphere
- Which atmospheric layer contains the ozone layer?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: B) Stratosphere
- Which layer of the atmosphere is closest to space?
- A) Troposphere
- B) Stratosphere
- C) Exosphere
- D) Mesosphere
Answer: C) Exosphere
- In which atmospheric layer does most weather occur?
- A) Mesosphere
- B) Thermosphere
- C) Troposphere
- D) Stratosphere
Answer: C) Troposphere
- Which layer of the atmosphere has the coldest temperatures?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: C) Mesosphere
- Which atmospheric layer is known for its high temperatures due to solar radiation?
- A) Troposphere
- B) Thermosphere
- C) Stratosphere
- D) Mesosphere
Answer: B) Thermosphere
- Which of the following layers contains the ionosphere?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere and Thermosphere
- D) Exosphere
Answer: C) Mesosphere and Thermosphere
- What is the boundary between the troposphere and the stratosphere called?
- A) Stratopause
- B) Mesopause
- C) Tropopause
- D) Exobase
Answer: C) Tropopause
- What percentage of the atmosphere’s mass is found in the troposphere?
- A) 10%
- B) 50%
- C) 75%
- D) 90%
Answer: D) 90%
- Which atmospheric layer is primarily responsible for absorbing ultraviolet (UV) radiation?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Exosphere
Answer: B) Stratosphere
- Which layer extends from about 50 km to 85 km above Earth’s surface?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: C) Mesosphere
- What is the uppermost layer of the Earth’s atmosphere?
- A) Mesosphere
- B) Stratosphere
- C) Exosphere
- D) Troposphere
Answer: C) Exosphere
- In which layer do meteors typically burn up?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: C) Mesosphere
- Which atmospheric layer can be found between the altitude range of 12 km to 50 km?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: B) Stratosphere
- The ionosphere plays a crucial role in which of the following?
- A) Weather patterns
- B) Satellite communication
- C) UV radiation absorption
- D) Jet stream formation
Answer: B) Satellite communication
- Which layer of the atmosphere contains the jet streams?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Exosphere
Answer: B) Stratosphere
- At which atmospheric layer is the air pressure the highest?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: A) Troposphere
- What happens to the temperature as you ascend through the stratosphere?
- A) It increases
- B) It decreases
- C) It remains constant
- D) It fluctuates
Answer: A) It increases
- Which atmospheric layer is the thickest in terms of vertical height?
- A) Troposphere
- B) Stratosphere
- C) Thermosphere
- D) Mesosphere
Answer: C) Thermosphere
- What is the primary gas found in the troposphere?
- A) Oxygen
- B) Nitrogen
- C) Carbon dioxide
- D) Argon
Answer: B) Nitrogen
- Which layer extends from about 85 km to 600 km above Earth’s surface?
- A) Stratosphere
- B) Mesosphere
- C) Thermosphere
- D) Troposphere
Answer: C) Thermosphere
- What is the approximate altitude of the tropopause?
- A) 10 km
- B) 20 km
- C) 30 km
- D) 40 km
Answer: A) 10 km
- Which of the following phenomena occur in the ionosphere?
- A) Thunderstorms
- B) Aurora Borealis
- C) Hurricanes
- D) Earthquakes
Answer: B) Aurora Borealis
- What is the average temperature in the mesosphere?
- A) 0°C
- B) -90°C
- C) 30°C
- D) -40°C
Answer: B) -90°C
- Which layer of the atmosphere gradually transitions into outer space?
- A) Troposphere
- B) Stratosphere
- C) Exosphere
- D) Mesosphere
Answer: C) Exosphere
- In which layer does the temperature decrease the most rapidly as altitude increases?
- A) Troposphere
- B) Stratosphere
- C) Thermosphere
- D) Mesosphere
Answer: A) Troposphere
- Which layer is responsible for long-distance radio communication due to its ionized gases?
- A) Exosphere
- B) Thermosphere
- C) Mesosphere
- D) Ionosphere
Answer: D) Ionosphere
- What is the primary characteristic of the thermosphere?
- A) Decreasing temperature
- B) Increasing temperature
- C) Constant temperature
- D) Rapid air circulation
Answer: B) Increasing temperature
- What is the boundary between the mesosphere and the thermosphere called?
- A) Mesopause
- B) Stratopause
- C) Tropopause
- D) Exobase
Answer: A) Mesopause
- At what altitude does the exosphere begin?
- A) 600 km
- B) 500 km
- C) 700 km
- D) 800 km
Answer: B) 500 km
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