Selected MCQ

Current Question
Which layer is closest to Earth?
  • A. Stratosphere
  • B. Mesosphere
  • C. Troposphere
  • D. Thermosphere
Correct Answer: C
Explanation:
Troposphere is lowest layer.
Related Question 1
Which layer of Earth is liquid?
  • A. Inner core
  • B. Outer core
  • C. Mantle
  • D. Crust
Correct Answer: B
Explanation:
Outer core is molten iron-nickel.
Related Question 2
Which atmospheric layer has lowest temperature?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: C
Explanation:
Mesosphere is coldest.
Related Question 3
Which layer contains clouds?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: A
Explanation:
Weather and clouds occur in troposphere.
Related Question 4
Which layer contains ionosphere?
  • A. Troposphere
  • B. Stratosphere
  • C. Thermosphere
  • D. Mesosphere
Correct Answer: C
Explanation:
Ionosphere lies within thermosphere.
Related Question 5
Which layer protects from UV?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: B
Explanation:
Ozone absorbs UV.