What percentage of the earth is covered by water?

Answer 1

~70%

Answer 2

Nearly 78% of the earth's surface is covered with water today.
The majority of that 78% is oceans. This number has fluctuated over geological time with the growth and melting of the polar ice sheets during and after the ice ages. At times the oceans were about 400 feet lower than today, exposing much more land surface. This happened when large quantities of water were locked up in glaciers. Today we are seeing a slow (millimeters per year) rise in the ocean levels. Whether this is cyclic or due to global warming, isin dispute. The answer to your question 3 is that the population of the earth is now around 5 billion people. The answer to question 4 is 97.3% of all of the water on earth is saltwater. The remaining is freshwater of which 2.1% is in glaciers and polar ice, 0.6% is underground water, 0.01% is in lakes and rivers, and 0.001% is in the atmosphere. All of these percentages are very near approximations.

Answer 3

70

Answer 4

Water is an odourless substance that is essential to all known forms of life and is known as the universal solvent. It appears colorless to the naked eye in small quantities. It covers nearly 71% of Earth's surface. The UN Environment Program estimates there are 1.4 billion cubic kilometres (330 million mi3)[1]of it available on Earth, and it exists in many forms. It appears mostly in the oceans (saltwater) and polar ice caps, but it is also present as clouds, rain water, rivers, freshwater aquifers, lakes, and sea ice. Water in these bodies perpetually moves through a cycle of evaporation, precipitation, and runoff to the sea. Clean water is essential to human life. In many parts of the world, it is in short supply. Significant quantities exist on the moons Europa and Enceladus. Thales of Miletus, an early Greek philosopher, known for his analysis of the scope and nature of the term "landscaping", believed that "all is water."

Answer 5

Approximately 70.8 percent (97% of it being sea water and 3% fresh water) (Hydrosphere (Greek hydro means "water") in physical geography, describes the collective mass of water found on, under, and over the surface of a planet. The abundance of water on Earth is a unique feature that distinguishes our "Blue Planet" from others in the solar system. Approximately 70.8 percent (97% of it being sea water and 3% fresh water[1]) of the Earth is covered by water and only 29.2 percent is landmass. Earth's solar orbit, vulcanism, gravity, greenhouse effect, magnetic field and oxygen-rich atmosphere seem to combine to make Earth a water planet.)

Answer 6

A bit less than 70 right now, but I've a feeling it's going to get a whole lot higher just as soon as all those glaciers melt.

Answer 7

I believe it is 70%

Answer 8

most probably around 75% of the earth consists primarily of water and only around 25% of it is land mass...

Answer 9

I think it is 70%

Answer 10

66.666%