Question

This is the least rigid and sometimes described as plastic in nature *

1 point
a. lithosphere
b. mesosphere
c. asthenosphere
d. none of the above
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Answer 1

D none of the above

Step-by-step explanation:

Answer 2

c. asthenosphere

Step-by-step explanation:

Among the choices above, "asthenosphere" is considered to be the softest or least rigid of all. Its softness is often described as "plastic" because of its ability to bend or having high ductility. The temperature and pressure here is higher compared to the rigid lithosphere, thus most of the rocks reaching this point are melted.