science 8 Flashcards
1
Q
lithosphere
A
the rigid outer part of the earth, consisting of the crust and upper mantle.
2
Q
asthenosphere
A
the upper layer of the earth’s mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
3
Q
mesosphere
A
the region of the earth’s atmosphere above the stratosphere and below the thermosphere, between about 30 and 50 miles (50 and 80 km) in altitude.
