The solar eclipse achieves totality only in limited geographical regions because ........

World Geography (Easy) Space

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The solar eclipse achieves totality only in limited geographical regions because :

the size of the shadow of the moon on the earth is small as compared to the cross section of the earth.

The earth is not smooth flat surface, but has elevations and depressions

The trajectories of the earth around the sun and the moon around the earth are not perfect circles

Sun rays can reach most of the peripheral regions of shadow of the moon due to atmospheric refraction.

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Explanation:

A solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight. This occurs when the Sun, Moon and Earth are aligned. Such alignment coincides with a new moon (syzygy) indicating the Moon is closest to the ecliptic plane