Question

Answer in brief (class 9)
what are tectonic plates ?​

Answer 1

Answer:

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. ... Continental crust is composed of granitic rocks which are made up of relatively lightweight minerals such as quartz and feldspar.

Explanation:

Answer 2

Tectonic plates:

• The crust of the earth is comprises some major and some minor plates.
• It is believed that, once upon a time, land was a single landmass which is known as the Gondwana Land.
• But, later the movement of the tectonic plates resulted in folding and faulting.
• This way, the land converged (came closer) and diverged (moved away).
• The converging of plates created mountains and the diverging plates created continents and islands.
• The pressure also leads to volcanic activity and earthquakes.
• Tectonic plates have continuous movement but we can't notice it.