What percentage of Earth's surface is land?

What is the approximate percentage of Earth’s surface that is covered by the hydrosphere?

How much of the Earth’s surface is covered with water?*1 pointAbout 71%About 50%About 3%About 15%

what percent of world land area is with india ?

Earth can be modeled by a sphere with a diameter of 7,918 miles. Given that 29% of Earth’s surface is land, which of the following is closest to the total area, in square miles, of land on Earth?Responses5.7×107Answer A: 5.7 times 10 to the seventh powerA2.3×108Answer B: 2.3 times 10 to the eighth powerB7.5×1010Answer C: 7.5 times 10 to the tenth powerC

Human actions have directly modified how much of the planet's land surface?