How much percent of life does Earth have?
408752
Only 1% of all the species that have ever lived on Earth are still around.
1137064
I'd say 50/50, just guessing. For just 'life' with no intelligence, such as plant, animal, or some other form, I'd say 90 percent. Intelligent life is tougher to do.
664993
75% of the earth...u do the rest of the calculation.
556217
It's the most important part of our earth. Just like our body.. 70% portion of water is in our body.
572441
Every day 400000 babies are born, 150000 people die for a net increase of 250000 human beings a day. So it is approximately 3 to 1 as you guessed.\n\nCurrently the worldpopulation increases with 90 million a year, or about 1.4%. We are crowding 6500 million people on the planet.
5362
According to the CIA World Factbook, as of July 2005, there was an estimated 6,446,131,400 living on the planet. \n\nBear in mind, the number is only an estimate but provides a reasonable snapshot of the world's population.
776999
The 4 basic elements that make up about 95% of the human body are hydrogen, carbon, oxygen, and nitrogen
171299
Africa is the world's second-largest and second most populous continent, after Asia. At about 30,370,000 km² (11,730,000 sq mi) including its adjacent islands, it covers 5.9% of the Earth's total surface area, and 20.3% of the total land area. With over 840,000,000 people (as of 2005) in 61 territories, it accounts for more than 12% of the world's human population.
478432
First: we are constantly being bombarded by millions of asteroids. The only thing that saves us is the atmosphere, which vaporizes them.\n\nI'll do a little math. We'll consider the solar system to end after the Oort Cloud, 100,000 AU or 9,300,000,000,000 miles. Therefore, the solar system has a volume of 4/3*π*(9.3*10^12)^3, or ........ about 3.369*10^39 cubic miles. The Earth has a volume of about 2.08*10^12 cubic miles.\n\nIn short, the Earth takes up 0.00000000000000000000000006% of the solar system. Even with trillions of potential threats, the chances are next to nothing.
773515
The earth consists of 91 or 92 natural elements in many varied combinations. There is no one formula for the earth.
815939
Not sure I understand your question....\nThe total mass of the earth is 6x10^24 kg.\nThe total human world population is about 6.6 x 10^9. Assuming an average weight of 50 kg, this give a total human mass of 3.3 x 10^11 kg, far smaller than the earth.  \nThe total biomass (all plants and animals together) is estimated here\nhttp://en.wikipedia.org/wiki/Biomass\nat about 2x10^15 kg, still 9 orders of magnitude smaller than the mass of the earth.
715942
the radius of the Earth 6375.654784689 Km. There are many living things on it and it will not be ever counted exactly.
824767
Approximately 61%\n\n#1 Asia - (3,879,000,000)\n#2 Africa - (877,500,000)\n#3 Europe - (727,000,000)\n#4 North America - (501,500,000)\n#5 South America - (379,500,000)\n#6 Australia/Oceania - (32,000,000)\n#7 Antarctica - (0)
86513
According to the Population Reference Bureau, the estimated population of Homo Sapiens that has ever been born on Earth up until the year 2002 is 106,456,367,669.  \n\nThe population in the year 2002 was 6,215,000,000.  \n\nTherefore the percent of people living now compared to all that have lived is roughly 6%.  Quite high if you think about it.
71583
In rough numbers, the world has about 6 billion people\nand the US has about 300 million, so that's roughly 5%.\n\nUsing more accurate numbers from the US Census bureau:\nworld = 6,494,760,917\nUS    = 298,009,292\nwhich works out to be about 4.6%
1043030
Most of the earth Surface is Covered with water, but that's only a small fraction of the planet itself. The Earth is made up mostly of silicate and magezeuim compunds and an iron core.
984374
Well, that depends.  There is evidence of algae at 3.5 billion, probably photosythetic cells by 2.0, and clear plants by 400 million.  With a 4.6 billion year old earth, that's 76%, 43%, or 8.7% of the time.