MCQ practice · SSC Bangladesh and Global Studies Board questions · Chapter 3: The Solar System and the Earth
The main features of a planet are-
- i. it has no light of its own
- ii. it has no heat of its own
- iii. there is no gravitation
Think it through first, then pick an option.
- a i and ii
- b i and iii
- c ii and iii
- d i, ii and iii
Answer and explanation
Correct answer: a i and ii
iii is false: planets revolve under gravitation; i and ii hold because planets have no light or heat of their own.
Why the other options are wrong
- b i and iii: This leaves out ii and includes the false iii: a planet has no heat of its own either, and gravitation does act.
- c ii and iii: This leaves out i and includes the false iii: a planet has no light of its own; gravitation does act.
- d i, ii and iii: iii is false: planets move in fixed orbits under gravitation, so the force exists.
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