Explanation

The Earth rotates on its own axis and it rotates in the eastward direction and in a counter-clockwise in prograde motion.

Explanation

Earth is closest to the sun every year in early January, when it's winter for the Northern Hemisphere.

Earth is farthest away from the sun in early July, during our Northern Hemisphere summer.

Explanation

Chronometer is a Al highly accurate timepiece which is used to keep Greenwich meantime

کرونومیٹر ایک انتہائی درست ٹائم پیس ہے جو گرین وچ کو اس دوران رکھنے کے لیے استعمال کیا جاتا ہے۔

Explanation

The local time of a place is known with reference to its Longitudinal position

Explanation

Explanation

One degree of longitude on the equator is equal to a distance of 69 miles

خط استوا پر طول البلد کی ایک ڈگری 69 میل کے فاصلے کے برابر ہے۔

Explanation

The earth turns through 360 degrees in 24 hours.

Therefore, the correct answer is One hour (1/24 of 360 degrees is 15 degrees, which represents the rotation in one hour).

The other options are incorrect. 

Explanation

 When ship crosses Dateline from west to east It loses one day

جب جہاز مغرب سے مشرق تک ڈیٹ لائن عبور کرتا ہے تو ایک دن ہار جاتا ہے۔

Explanation

If the difference in time between two places were 2 hours and 20 minutes, then the difference in their longitude would be 

اگر دو مقامات کے درمیان وقت کا فرق 2 گھنٹے اور 20 منٹ تھا ، تو ان کے طول البلد میں فرق یہ ہوگا:

Explanation

Equator is the farthest from the centre of the earth.

خط استوا زمین کے مرکز سے سب سے دور ہے۔