Only one side of the moon is ever seen from the earth because
| A. | the moon is at perigee |
| B. | the moon does not rotate |
| C. | only one side reflects light |
| D. | the periods of rotation and revolution of the moon are equal |
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Option: D Explanation : Click on Discuss to view users comments. |
Day's and nights are caused by
1 rotation of the earth on its axis
2. revolution of the earth around the sun
3. inclination of the earth's axis
| A. | Only 1 is correct |
| B. | 1 and 2 are correct |
| C. | 2 and 3 are correct |
| D. | All are correct |
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Option: A Explanation : Click on Discuss to view users comments. |
What is the maximum length of a day on the poles?
| A. | 12 hours |
| B. | 24 hours |
| C. | 3 months |
| D. | 6 months |
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Option: D Explanation : Click on Discuss to view users comments. |
Which of the foliowing are true regarding equinoxes
(i) They occur on March 21st and Sept 23rd
(ii) They depict equal days and equal nights on March 21 and Sept 23 on all places of the earth
(iii) All places on the earth have equal temperature during equinoxes
| A. | (i) and (iii) only |
| B. | (ii) and (iii) only |
| C. | (i) and (ii) only |
| D. | (i),(ii) and (iii) |
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Option: C Explanation : Click on Discuss to view users comments. |
