Question

D. Answer the following questions in brief.
1. What is rotation? How much time does earth take in completing one rotation?
2. What is meant by the revolution of the earth?
3. What is a leap year?
4. What is an equinox? Which seasons are indicated by it in both the hemispheres?
5. Why does the duration of day and night change in a year?​

Answer 1

Answer:

it takes 1 year 6 hrs to have a full revolution when we completed 4 years we ll get on day extra thats the leap year

Answer 2

Answer:

Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to other, distant, stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past