Question 31
The Earth and Solar SystemWhich of the following is a proof of the earth's spherical shape?
- A.Circum navigation.
- B.Variations in the length of day and night.
- C.Marking of a year.
- D.Rise and fall of tides.
Show the answer and explanation
Answer: A (Circum navigation.)
Explanation
Ships sailing continuously in one direction return to where they started, which shows the earth is round.