Question

The_____of the  Earth  is  not  stable.
a)  Core b)Nife c)  Crust d)  Mantle

TNSCERT Class 7 Geography Ch1. The Earth -Its Structure and Tectonic movements

Answer 1

The Nife of the of the Earth is not "stable"

Therefore option b) Nife is the correct option

Answer 2

Answer:

It is the "Nife" of the "Earth" is "not stable".

This is because, Nife, which derives its name ‘Ni’ from Nickel and ‘Fe’ from Ferrum or Iron, is an essential part that comprises of the "inner core of the Earth" that is highly unstable. The "inner core of the earth" is in a liquid or molten state made up of molten rocks or magma or lava that is highly unstable. This makes the "Nife" of the earth "highly unstable".