Question

Hi.
Good morning , have a nice day...
and
please give me ans...

class 9 cbsc
chapter 2 ,

1. what are tectonic plates ?

2. which continents of today were part of the Gondwana land ?​

Answer 1

Answer:

(¡) The convectional currents present below the solid layer of Earth's crust split the crust or the lithosphere into a number of large fragments. These fragments are called tectonic or lithospheric plates. (ii) The continents that were part of Gondwana land are Australia, Antarctica and South America.

Hope it helps.

Answer 2

Answer:

1. Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3.3 and 3.5 billion years ago.

2. Gondwana. The southern supercontinent Gondwana (originally Gondwanaland) included most of the landmasses which make up today's continents of the southern hemisphere, including Antarctica, South America, Africa, Madagascar, India, Arabia, Australia-New Guinea and New Zealand.