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a gas
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∙ 11y ago
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Do all element exist as atom?
If you mean do the exist as single atoms, no. Some can exist as molecules. Hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine usually exist as the diatomic molecules H2, N2, O2, F2, Cl2, Br2, and I2 respectively. Oxygen can also exist as O3. Phosphorus can exist as P4 and arsenic as As4. Sulfur is usually found as S8. Carbon can exist as C60 and a variety of similar molecules.
How many species of plants exist on earth?
1.4 millon plants exist on earth
How many species of plants exist earth?
1.4 million plants exist on earth
Why does earth need oxygen?
The oxygen in the air of earth is the result of biological processes over the past 4000 million years. Trees give out oxygen as they photosynthesize ------------------------------------------------------------------------------------------- Initially Earth's atmosphere did not contain free Oxygen (we know this from the chemistry of sediments that were first formed). Life on earth then happened and by the process of photosynthesis slowly began releasing Oxygen into the environment. At first this Oxygen reacted chemically with stuff (eg Iron salts) in the environment but over time all this "stuff" was converted and free Oxygen began to appear in the environment. This speeded up the development of life and about 600 million years ago there was enough Oxygen for life to use it to build calcareous shells and eventually for life to move onto the land. Thus life has made the planet we have today, Earth has been "terraformed" and now has an Oxygen rich atmosphere.
Is oxygen always in diatomic state?
Oxygen has a diatomic molecule and ozone a triatomic molecule.But also monoatomic oxygen exist.
How is oxygen important to society?
nothing on earth would exist
Reason why life can exist on earth?
because there an oxygen, water, and food
What condition had to be in place on earth for water to exist here?
For water to exist on Earth there had to be presence of the water forming molecules. Enough Oxygen and Hydrogen had to be in place.
On earth molecular oxygen is usually a?
Gas?
Why earth is the only planet where life exist?
beause earth is the only planet which has oxygen and other needed sudstances .
Could life exist on Earth if the air contained only oxygen?
No. The oxygen would be too concentrated and we would die.
What is the specific name of the one organism on earth that does not use oxygen it its respiratory system?
There exist several life forms which do not need oxygen for survival, for example bacteria purple sulfur bacteria (Chromatiales). But if I recall correctly, no higher life forms which don't need oxygen exist on Earth.
What would happen if oxygen did not exist?
Life on Earth, or at least most of it, would not exist without free oxygen. It is possible that some other form of life, based on another element, could exist in a non-oxygen environment. But none has been discovered as of now.
What is the most important for life to exist?
The 6 essentials elements of life to exist are: carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. Without them, life can't exist on Earth!
Do all element exist as atom?
If you mean do the exist as single atoms, no. Some can exist as molecules. Hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine usually exist as the diatomic molecules H2, N2, O2, F2, Cl2, Br2, and I2 respectively. Oxygen can also exist as O3. Phosphorus can exist as P4 and arsenic as As4. Sulfur is usually found as S8. Carbon can exist as C60 and a variety of similar molecules.
What chamber usually receives blood with oxygen?
the gravity of rhe earth
What reasons would have made it difficult for life to exist on early Earth?
The lack of oxygen and the extreme temperatures
