Question

A. When at its brightest, it is easily seen with the naked eye in broad daylight.
B. When at its farthest from the Earth, Venus is 160 million away.
C. With such a wide range between its greatest and least distances it is natural that at sometimes Venus appears much brighter than at others.
D. No other body ever comes so near the Earth, with the exception of the Moon and occasional comet or asteroid.
E. When Venus is at its nearest to the earth it is only 26 million miles away.
F. The path of Venus lies inside the path of the Earth.
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Answer 1

The sentences F, E and D form a continuous pair and they are all related to the theme of the proximity of Venus to the Earth. Similarly, B,C and A also form a continuous pair. The sentence B follows D as it introduces the new topic of the furthest distance of Venus from the Earth. C then introduces a topic of the relative brightness of Venus as compared to other celestial bodies and A follows C as it refers to what happens when Venus is at its brightest.
So the logical sequence of the sentences is FEDBCA.