10 points to the best answer. CSV XML EXCEL. Earth’s surface is about 500 million km 2, but most of that (70.8%) is water, which we’re not really very good at.So ignoring oil rigs and the occasional cruise liner, we’re only talking about a total possible land surface to cover of roughly 149 million km 2. And nearly 25 percent of that land is administered by the federal government, with most occurring in the West. km) Download . Rural land area where elevation is below 5 meters (% of total land area) Urban land area where elevation is below 5 meters (% of total land area) Land area (sq. What Percent Of The Earth Is Covered By Landfills. If every person got an equal portion, they'd all get a little under a half an acre. Space Place... in a snap!How much water is on Earth?Earth is special because it has so much water. Gaseous emissions from volcanic vents over hundreds of millions of years formed the Earth's earliest oceans and atmosphere, which supplied the ingredients vital to evolve and sustain life. Area of water: 361 740 000 km 2 (139 668 500 square miles), this are 71% of the total surface of the Earth. By the end of 2002, the US Bureau of Land Management (BLM) had evaluated rangeland health on 7,437 grazing allotments (i.e., 35 percent of its grazing allotments or 36 percent of the land area contained in its grazing allotments) and found that 16 percent of these failed to meet rangeland health standards due to existing grazing practices or levels of grazing use. A new interactive map produced by NASA and the National Oceanic and Atmospheric Administration (NOAA) shows all the world’s vegetation.The satellite images were compiled into a single high-resolution image showing how much greenery covers the Earth.. The quarter of Earth’s land now owned, used or occupied by indigenous communities holds about 80 percent of Earth’s biodiversity, according to a 2008 World Bank report. The sliding movement of glaciers across the surface of the earth causes the rocks and land underneath to erode, resulting in u-shaped valleys over time. I mean: How big is our atmosphere; Is there any increase or decrease in the amount of atmosphere over time; Is there any change in percentage of oxygen over time Thanks! The land surface of the Earth is between 29% and 30% of the total area, depending on the definition of the terms "land" and water. For most countries, land dedicated to cropland is typically below 20 percent, with many countries dedicating less than 10 percent. Most of the Earth's water, about 96.5 percent, is saline water contained in the oceans. Online tool for visualization and analysis. Actually, pretty much everything out there was at one point touched by a human being. Only 13% of the world’s oceans have no trace of human life (like teeny, tiny pieces of plastic ingested by plankton). Water comprises more than 75 percent of our bodies and as much as 95 percent of some of the foods we eat 1. Landcover is one key way that we can measure how much of the terrestrial environment has been covered by humans. This leaves around 30 percent of the planet's surface as potential farmland, totaling just over 57 million square miles. Do glaciers cover 70 percent of earths land? We know a lot about some of these ecosystems, like the mangrove and kelp forests that surround our coastlines, and the polar seas at the North and South Poles. Area of land: 148 326 000 km 2 (57 268 900 square miles), this are 29% of the total surface of Planet Earth. Africa makes up around 20.4% of Earth’s total land area and 14% of the area of Africa is mountainous. More than 80 percent of the Earth's surface--above and below sea level--is of volcanic origin. 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