Selected MCQ

Current Question
Which atmospheric layer has lowest temperature?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: C
Explanation:
Mesosphere is coldest.
Related Question 1
Which layer has highest temperature?
  • A. Troposphere
  • B. Stratosphere
  • C. Thermosphere
  • D. Mesosphere
Correct Answer: C
Explanation:
Thermosphere has very high temperatures.
Related Question 2
Which layer contains clouds?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: A
Explanation:
Weather and clouds occur in troposphere.
Related Question 3
Which layer contains ionosphere?
  • A. Troposphere
  • B. Stratosphere
  • C. Thermosphere
  • D. Mesosphere
Correct Answer: C
Explanation:
Ionosphere lies within thermosphere.
Related Question 4
Which layer protects from UV?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: B
Explanation:
Ozone absorbs UV.
Related Question 5
Which law relates heat and temperature?
  • A. Boyle
  • B. Newton cooling
  • C. Ohm
  • D. Coulomb
Correct Answer: B
Explanation:
Cooling rate proportional to temp difference.