The heavier silicates named 'Sima' Of silica + magnesium are most abundant in the
| A. | Crust |
| B. | Core |
| C. | Mantle. |
| D. | Ocean floors |
|
Option: D Explanation : Click on Discuss to view users comments. |
Which of the following are true regarding equinoxes?
1. They occur on Marchh 21st and September 23rd
2. They depict equal days and equals nights on March 2 I st and September 23rd on all places of the earth
3. All places on the earth have equal temperature during equinoxes.
| A. | I and 2 only |
| B. | 2 and 3 only |
| C. | I and 30 only |
| D. | 1,2 and 3 |
|
Option: D Explanation : Click on Discuss to view users comments. |
What is the approximate equatorial circumference of the earth?
| A. | 30,000 Km |
| B. | 35,000 Km |
| C. | 40,000 Km |
| D. | 45,000 Km |
|
Option: D Explanation : Click on Discuss to view users comments. |
Which of the fonowing statements regarding the earth's axis are true?
It makes an angle of 660 with the plane of ecliptic. It maintains a flexible orientation with respect to the stars It is the most important fact connected with Earth Sun relationship| A. | I and 2 |
| B. | 2 and 3 |
| C. | 1 and 3 |
| D. | 1,2 and 3 |
|
Option: C Explanation : Click on Discuss to view users comments. |
