Q: 61 (CDS-I/2004)

That Earth is spherical in space is not proved by which of the following statements:
I. If Earth were flat there would be some sharp edges to be found by travellers.
II. Solar eclipses show the shadow of earth as circular.
III. Sunrise is not visible from all places on Earths surface at the same time.
IV. The altitude of stars seen from different places on Earths surface vary,

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