Home › UPSC CSE › Geography › Physical Geography › The upper mantle layer whose name means weak is …
The upper mantle layer whose name means weak is the:
AAsthenosphere
BLithosphere
CTroposphere
DInner core
Answer & Solution
Correct answer: A. Asthenosphere
1. It extends to about 400 km.
2. Astheno means weak.
3. It is the main source of magma.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._
Related questions
How many check-dams did Bhujpur villagers build in 1989?Bhujpur's check-dams were built on which river and its tributaries?Bhujpur, where villagers built check-dams in 1989, is in which region?Watering plants through narrow tubes delivering water at the base of the plant is:Bawris, now being revived, were traditional structures for:Using rainwater to recharge groundwater is called:Excessive rains cause floods, while absence of rain results in:Most Indian farmers depend on which source to irrigate crops?