MCQ practice · SSC Bangladesh and Global Studies Board questions · Chapter 3: The Solar System and the Earth
Because the Earth revolves in an elliptical path-
- i. the temperature of the same region varies
- ii. tides occur
- iii. the length of day and night varies at a given latitude
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: b i and iii
The book says the annual motion varies the Sun's heat and makes day and night wax and wane; tides have another cause.
Why the other options are wrong
- a i and ii: ii is false: tides come from the Moon's and Sun's attraction and centrifugal force, not from the shape of the orbit.
- c ii and iii: This leaves out i and includes the false ii: the temperature of a region changes through the year; tides are not due to the orbit.
- d i, ii and iii: ii is false: tides are not a result of the shape of the Earth's orbit, so not all three are true.
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