Antarctica is a continent -- 98% of which is covered by an ice sheet. Continents are composed of 'rock'. As to why -- this is a mystery best answered the same way it wold be answered for all continents on earth.
Antarctica is a continent, so yes: under its ice sheet, there is land.
99.9
There are no commercial fishermen in Antarctica.
No, Antarctica is a continent.
Antarctica is its own continent.
Antarctica is a continent, so there is land under the ice. Most of this land hasn't been exposed in thousands of years (or millions further inland), so there is essentially nothing but rock beneath it. There are even mountain ranges and volcanoes throughout the continent, covered under thick ice.
Rock, the landmass of the continent of Antarctica.
Antarctica
Antarctica, It is mainly ice and rock while Africa is rock and soil.
sitting on magma
Sand is not common in Antarctica, even at the edges of the continent.
There is no mining allowed in Antarctica under The Antarctic Treaty.