Question

what Antarctica is known as white continent​

Answer 1

Explanation:

Antarctica is a continent which remains covered with snow and thick ice sheets all year round. Hence it is known as the 'White Continent'.

Answer 2

As Antarctica lies in the South Pole of the Earth it is wholly covered with snow or ice, being the white colour of ice the continent looks white in colour.

In short we can say that,

As it is covered with snow it is white in colour, so that is only the reason that Antarctica is known as white continent.