Question 1 — What is one major - Questions at the end of the chapter - Chapter 13 Class 8 - Our Home: Earth, a Unique Life Sustaining Planet

Last updated at July 13, 2026 by

Q 1
Question

What is one major reason Mars cannot currently support life like Earth?

  • (i) It has too many volcanoes.
  • (ii) It is too close to the Sun.
  • (iii) It lacks a thick atmosphere and liquid water.
  • (iv) Its magnetic field is too strong.
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Answer
(iii) It lacks a thick atmosphere and liquid water.

Explanation

  • Mars has an atmosphere about 100 times thinner than Earth's.
  • It does not have liquid water on its surface now.
  • Liquid water is essential for life as we know it.
  • So without these, Mars cannot support life like Earth.
A thick atmosphere and liquid water are essential for life.
← Back to concept: 13.3.1 Position of the Earth
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