Wiki User
∙ 10y ago.00003
Wiki User
∙ 10y agoIt is approximately 1/6.
The earth is only approximately spherical. Its radius ranges from 6353 to 6384 kilometres, with an average value of 6371 km. So the required fraction is 6,194/6,371,000 = 0.000972, approx
about 8%
That depends on how long ago humans developed. Assume 100,000 years, the earth is about 4,000,000,000 years old. So% = 100,000 / 4,000,000,000 x 100 = 0.0025 %
The land fraction is approx 7/10 and the air fraction is 0.
Approximately 63 Earths could fit across Uranus, as Uranus has a diameter that is about 4 times that of Earth.
Rarefraction
existed since the planet cooled
What are two ways that's scientists can study earths climates history
27.7 %
About 29% of Earth's surface is not covered by water. This land area consists of continents, islands, and other landmasses.
The Earths crust is approximately 650 km deep.