Question

Which relief feature has 30% of total surface area

Answer 1

Not a particular releif has 30% of total surface area,all the mountains,plateaus,etc.(except plains) make 30% of total surface area.

Answer 2

Hi friend, 
Mountains account for 30% of the total surface area of India. 
Hope this helps. . . Cheers. . . . 
If you understood from it well, then please please mark as the brainliest. 
Thanks.