Variations in the length of daytime and nighttime from season to season are due to (a) the earth’s rotation on its axis

(d) remain standing. Explanation: The person will loose weight but remain standing. As no force acts on him, so according to "Newton's First Law of Motion" he will remain in his state of rest...

(c) 0 Explanation:  Since the body is uniformly rotating, the resultant force on the particle P will be in the radial direction. So again the directions of A and B will be...

(d) remain standing. Explanation: The person will loose weight but remain standing. As no force acts on him, so according to "Newton's First Law of Motion" he will remain in his state...

(b) Earth magnetic field is inchined between –90° to 90°. In the northern hemisphere it points downwards and upward in the southern hemisphere.

(a) The Earth's rotation on its axis explains the eastward flow of the equatorial counter-current. The earth would have been rotating east to west, the piled up water would have...

(c) At Mumbai the sun can come overhead, but it will never do so at Delhi 

(b) The time taken by the Earth to complete one rotation on its axis is 23 hr-56 min 4 sec.

(b) Rotation of earth on its axis causes day and night but the revolution of earth in an elliptical manner around the sun causes seasons, equinoxes and solstices.

(a) The Earth’s rotation on its axis explains the eastward flow of the equatorial counter-current. The earth would have been rotating east to west, the piled up water would have...

The Right option is : (b) 2 and 3