Q. What percent of earth's surface is covered by land?
Answer: 30%
Notes: Land cover about 30 percent of Earth's land surface, while accounting for 50 percent of plant productivity. As much as 45 percent of the carbon stored on land is tied up in forests. Forests cover 30 percent of the Earth's land.

This question is part of 40000+ MCQs GKToday PCS Mock Tests Series in GKToday Android app. Question Number: 40 in GKToday PCS Mock Test - 385 in above course in App.