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Scientist have been exploring life below Earth's surface and continue to find living organisms in deeper and more extreme environments.
Microorganisms that thrive underground in the absence of sunlight account for about 50% of the earth's biomass.
Microbial life has been found in the rocks of mines at depths of up to five kilometers and at temperatures of 60°C. Other microbes have demonstrated a capacity to live at temperatures above 120°C (in hot springs and deep-sea hydrothermal vents) and so may be capable of living at much greater depths. Soviet and British scientist are searching for bacterial life in deep lakes in Antarctica, covered by 2 kilometers of ice for tens of millions of years. Bacteria are found in the Marianas Trench, the deepest place on Earth, 6 miles or 10 kilometers below the ocean surface at 1,000 atmospheres pressure. There are other examples as well.
What else can I help you with?
Is oxygen found outside earths atmosphere?
Yes. Earth's atmosphere is about 21% oxygen. Without it, the vast majority of life we see, including humans, could not exist.
What is theSection of stratosphere 20 miles above the earth's surface called?
This is the ozone layer, which is spread out through parts of the stratosphere. It protects the surface from ultraviolet radiation, though some still passes through. Without it, life would not be able to exist as it does now.
How do the nonliving parts of earths systems provide the basic materials to support life?
i dont know dhiss shidd mane..........................
What causes an earthquake and what negative effects can it have on the environment?
Movement of the Tectonic plates below the surface of the earth causes earthquakes. Negative effects of earthquakes are- 1 It causes a great damage to life and property. 2 It sometimes causes Tsunami also.
What did the Dead Sea died of?
The surface of the Dead Sea is more than 400 meters below sea level and mineral laden water flowing into it from the Jordan River disappear by evaporation. Minerals left behind after the water evaporates make the Dead Sea about nine times as salty as the oceans. Animal and plant life cannot exist in this high a concentration of salt, so the Dead Sea was given its name long ago because there was no evidence of any forms of life in it. There are tiny microbes living in the Dead Sea, but their existence was unknown before the 1900's.
What is the main impact of ozone on the life on Earth's surface?
It allows DNA-based life to exist. See the "Related questions" section below.
Why are carbon dioxide water vapor and other greenhouse gases important to life on Earths surface?
They absorb radiant energy emitted by Earths surface
What keeps earths surface warm?
the green house effect
Why is life on Earth confined to such a narrow layer near the Earths surface?
They are condense.
How do humans shape the world in which they life?
our activities, movements and settlements shape the Earths surface.
As life began to populate earths surface what change was seen in the atmosphere?
more oxygen was consumed
What are example of surface area and volume in real life?
Solid objects exist in real life. Each one of them has a surface area as well as a volume.
What is the reason life can exist on Jupiter?
Because the temperature on the surface is simmilar to Earth's.
Is it possible to have life on mars?
Conditions are perceived by many scientists to be ripe for simple life forms to exist on Mars. Water may be trapped below the surface. There is the ability for light to penetrate the surface. Thus, some unicellular organisms might be in existence on Mars. As of yet, nobody knows for sure.
What is a thin layer of air that protects the earths surface?
The thin layer of air that protects the Earth's surface is known as the atmosphere. It is composed of different gases, such as nitrogen, oxygen, and carbon dioxide, that help regulate temperature, protect from harmful radiation, and maintain the conditions necessary for life to exist on Earth.
What factor allow life to exist on earth?
some factors that allow life to existon earth is that earths atmosphere is just right.
If the earths axis had no tilt would there still be seasons?
No. There also would be very little chance life would exist on the planet.
