| Examine the following statements with reference to interior of the earth. |
| 1. The lithosphere consists of the crust and the uppermost core and rigid position of the mantle. |
| 2. Below the lithosphere is the asthenosphere which is a thin, hot and slowly flowing layer of upper mantle. |
| 3. Mesosphere is the rigid middle and lower mantle extending up to the core of the earth. |
| 4. The mesosphere and the asthenosphere have different physical but similar chemical properties. |
| Find out the correct statements combination by using the following codes |
A) 1 and 2 only
B) 2 and 3 only
C) 1, 2 and 3 only
D) 1, 2, 3 and 4
Correct Answer: A
Solution :
The mesosphere is the layer of the Earth's atmosphere that is directly above the stratopause and directly below the mesopause. In the mesosphere temperature decreases as the altitude increases. The exact upper and lower boundaries of the mesosphere vary with latitude and with season, but the lower boundary of the mesosphere is usually located at heights of about 50 kilometres (160,000 ft; 31 mi) above the Earth's surface and the mesopause is usually at heights near 100 kilometres (62 mi), except at middle and high latitudes in summer where it descends to heights of about 85 kilometres (53 mi). The asthenosphere is the highly viscous, mechanically weak and ductility deforming region of the upper mantle of the Earth. It lies below the lithosphere, at depths between approximately 80 and 200 km (50 and 120 miles) below the surface.
You need to login to perform this action.
You will be redirected in
3 sec
