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It is thought that millions of comets rained down as ice on the early Earth and produced the oceans soon after it's creation 4,7000 million years ago. Look at the surfaces of Mercury and the Moon. They are covered in craters but, having no atmosphere and low surface gravity, the water leaked back out into space.
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Abundance of beryllium on earth's crust?
Beryllium concentration in the earth crust: 2,8 mg/kg Beryllium concentration in the sea water: 5,6.10-6 mg/kg Beryllium in the sun and solar system, as atom mole fraction relative to silicon+1: 4.10-7
How common is cobalt?
Abundance of cobalt in the earth crust: 25-35 mg/kg Abundance of cobalt in the sea water: 0,02 microgram/L Abundance of cobalt in the solar system: 2,3.10-3 atom mole fraction relative to silicon=1. Abundance of cobalt in the human body: 0,000 002 1 %
Which makes earth suitable for life?
It's distance from the sun, its magnetic shield, it's abundance of liquid water. Take your pick.
How many planets have the same amount of water as the earth?
If you mean liquid water, then the Earth is the only planet. Mars has water ice in abundance but if melted, would probably not be anywhere near as plentiful as Earth. NASA calculates that if all the water ice was melted, Mars could be covered by water to a depth of 11m. So, as of 2010, no known planets have the same amount of water as Earth.
Is calcium metal rare?
Abundance of cadmium in the earth crust: approx. o,15 mg/kg Abundance of cadmium in the sea water: 1,1.10-4 mg/L Abundance of cadmium in the solar system (atom mole fraction to silicon): 2.10-6
Which planet has an abundance of liquid water?
Earth
An abundance of what makes life possible on earth?
Air and liquid water.
Is uranium the element rare?
abundance of uranium in the earth crust; 2,5-3 ppm (mg/kg) abundance of uranium in the sea water: ca. 3 ppb (?g/kg)
Is there an abundance of diamonds on the earth?
This is a question without an answer. What is clear, however, is that extracting diamonds from the earth is expensive and dangerous: diamonds are not as common as air or water, for example. It is not possible to determine how many diamonds there may be on earth, but it may be accurate to write that diamonds are not necessarily 'in abundance' on earth.
Is radium rare or common?
Abundance of radium in the earth crust: 9.10-10 mg/kg Abundance of radium in the sea water: 8,9.10-14 mg/L
Where is water found in abundance?
Water is found in abundance in the Earth's oceans, which cover about 71% of the planet's surface. Other sources of abundant water include glaciers, ice caps, rivers, lakes, and groundwater reserves. Additionally, water vapor in the atmosphere contributes to the global water cycle.
Abundance of beryllium on earth's crust?
Beryllium concentration in the earth crust: 2,8 mg/kg Beryllium concentration in the sea water: 5,6.10-6 mg/kg Beryllium in the sun and solar system, as atom mole fraction relative to silicon+1: 4.10-7
How common is cobalt?
Abundance of cobalt in the earth crust: 25-35 mg/kg Abundance of cobalt in the sea water: 0,02 microgram/L Abundance of cobalt in the solar system: 2,3.10-3 atom mole fraction relative to silicon=1. Abundance of cobalt in the human body: 0,000 002 1 %
Which makes earth suitable for life?
It's distance from the sun, its magnetic shield, it's abundance of liquid water. Take your pick.
How many planets have the same amount of water as the earth?
If you mean liquid water, then the Earth is the only planet. Mars has water ice in abundance but if melted, would probably not be anywhere near as plentiful as Earth. NASA calculates that if all the water ice was melted, Mars could be covered by water to a depth of 11m. So, as of 2010, no known planets have the same amount of water as Earth.
How did oxygen begin to accumulate in the atmosphere?
Algae and later plants used sunlight to convert water and carbon dioxide into carbohydrates and oxygen. Until about the middle of the Paleozoic oxygen went into the atmosphere faster than it could be removed.
What is the biological abundance of chlorine?
water
