Earth MCQs

When does solar eclipse take place?

Which of the following statements is/are correct?
1. A crossing of the International Date Line entails repeating one day when traveling westwards
2. A crossing of the International Date Line entails repeating one day when traveling eastwards
3. International Date Line is an internationally agreed line drawn parallel to the 180° meridian
4. International Date Line divides the Pacific Ocean into two equal parts.

Variation in duration of day and night is due to:
1. rotation of earth on its axis
2. revolution of earth around the sun
3. inclination of earth at an angle of 66%.

If the earth's axis had not been inclined:
I. temperature distribution would have been uniform
II. days and nights would not have occurred
III. seasons would not have occurred
IV. poles would not have a continuous day

The permanent tilt of the earth's axis and the revolution of the earth in its orbit together cause:
I. deflection of winds and ocean currents
II. differences in time between places on different meridians
III. varying length of day and night at different times of the year
IV. changes in the altitude of the mid-day sun at different times of the year

Which of the following statements regarding the earth's axis are true?
1. It makes an angle of 23.5^o with the plane of ecliptic
2. It maintains a flexible orientation with respect to the stars
3. It is the most important fact connected with Earth-Sun relationship

The sun is never overhead at any time in :
I. North Temperate Zone
II. South Temperate Zone
III. North Frigid Zone
IV. Torrid Zone

At neap tide:
1. the sun and moon exert their force at right angles
2. the tidal amplitude is high
3. the low tides are very low

Magnetic Meridian is a