Question

Assamese herreeeeee....if you don't know Assamese language don't come here plz..​

Answer 1

Answer:

I dont know assamese, but i googel lensed it and heres ans. to 4

Explanation:

The continents cover about 29% of the total surface area of the earth and the rest, 79%, is covered by oceans. It is a well-accepted fact that the positions of the continents and the oceans have not been the same in the past and they will not continue to have their present positions in times to come.

In 1912, Alfred Wegener, a German meteorologist put forth a comprehensive argument in the form of  “The Continental Drift Theory” regarding the distribution of the oceans and the continents.

According to him, all the continents once were together forming a single continent. About 250 million years ago, the earth was made up of a single landmass (supercontinent) called Pangaea (meaning “all lands”) and a single ocean surrounding it called Panthalassa (all water). He argued that around 200 million years ago, the supercontinent Pangaea began to split. Pangaea first broke into two large continental masses namely Laurasia in the north and Gondwanaland in the south. Laurasia further broke into Eurasia and North America. Gondwanaland split into Africa, South America, Antarctica, Australia and India.