Geography
Assertion (A): The pole star lies in line with the axis of the earth with its angle decreasing towards the Equator.
Reason (R): The earth is spherical in shape.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Planet Earth
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Answer
Both A and R are true and R is the correct explanation of A.
Explanation — The Pole star can be seen at 90° at the North pole and at 0° at the Equator. As the pole star lies in line with the axis of the earth, its angle decreases when one moves towards the Equator because of Earth's spherical shape.
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Related Questions
Assertion (A): With increase in altitude the circular horizon of the earth's surface also widens.
Reason (R): The earth's surface is flat.
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- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
At what angle can the Pole Star be seen at the Poles and at the Equator?
- 60°, 30°
- 90°, 0°
- 45°, 45°
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Magellan's ship Victoria after completing a round-the-world voyage in 1522 returned to which country?
- France
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- London
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Earth's diameter at the Equator is …………… and at the poles is …………… .
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