I WONDER - How Much Ice Is In Antarctica?

Antarctica is largely covered by a massive ice sheet, accounting for 98% of its surface. In some areas, the ice is over 2 miles thick, making it the largest ice sheet on Earth. This ice contains about 70% of the world's fresh water, all of which is frozen and inaccessible. If the Antarctic ice sheet were to melt completely, global sea levels would rise by about 200 feet, significantly altering coastlines worldwide.

What would happen to global sea levels if the Antarctic ice sheet were to melt completely?

What significant changes could occur to our planet's coastlines due to the melting of the Antarctic ice sheet?