16.

Knot is a unit of speed of which of the following?
A. Aeroplane B. Light waves
C. Ship D. Sound waves
Answer and Explanation
Answer:C
Explanation: No answer description available for this question.
17.

Knot is a unit of speed of which of the following?
A. Aeroplane B. Light waves
C. Ship D. Sound waves
Answer and Explanation
Answer:C
Explanation: No answer description available for this question.