Question

.................per cent of the world's population resides in only 30 per cent of the land area on the earth's surface options (a)=70 (b)=80 (c)=90

Answer 1

Answer:

10%

So we can either state that most humans now inhabit only 10% 0f world's land, but we have the rest 80% well connected with roads, highways, farmlands. etc. So depending on time taken to travel, we can say that humans now inhabit 90% of world's land leaving only 10% for wilderness.