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Where did most of earths atmospheric oxygen originally come from?
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Where does the oxygen in ETC come from?
The oxygen is a product of glycolysis
Where does pyrophosphate come from?
Pyrophosphates have the chemical formula (P2O7)-4. They are a class of chemical anions that were originally formed from heating (pyro) phosphates. They are formed by esterification of two phosphates (linking them with one of the phosphate oxygen atoms).
Where did the word oxygen come from?
england
What is breathable air and its connection with lakes?
For human beings breathable air consists of a ratio of oxygen to some inert gas (on earth it is nitrogen). The typical concentration is about 1/5th oxygen and 3/4 nitrogen. Where does oxygen come from? Oxygen readily combines with so many different elements. Hydrogen + oxygen makes water. Carbon plus oxygen makes carbon dioxide. Iron plus oxygen makes rust. Silicon combines with oxygen to make sand. So free atmospheric oxygen is an oddity. Why do we have such an abundance of it? This question brings us to lakes. More particularly, oceans. Earth's early oceans teemed with single celled organisms that absorbed carbon dioxide from the atmosphere or that was dissolved in sea water, and using sunlight broke that molecule apart, releasing the oxygen. After eons these photosynthetic creatures tore apart most of the atmospheric CO2, rendering it into carbon, which they absorbed and used, and releasing the oxygen. After several billion years photosynthetic plants evolved, first in the oceans, and then migrating into the terrestrial sphere (land). But even today most new oxygen come from marine cyanobacteria, mostly in the ocean, but also in lakes and rivers, and to some extent pine needles, leaves on trees and bushes, blades of grass, and ferns.
Where does oxygen in water come from?
Water molecules are formed by the reaction between hydrogen and oxygen.
Where did oxygen originally come from?
Cyanobacteria
Where do most of the objects you use in your life originally come from?
From the earths crust
Where do most of the objects you use in you life originally come from?
From the earths crust
Where does the free oxygen in Earths atmosphere come from?
The free oxygen bubbled up from the oceans.
Where does the oxygen in earths atmosphere come from?
The origin of oxygen (and other large elements) is from supernovae. On the smaller scale, the vast majority of our oxygen comes from ocean plants, from tiny algae to giant kelp. The atmospheric oxygen comes from the decomposition of water and carbon dioxide by organisms that use photosynthesis to make useful molecules in combination with the energy from sun light.
What gas does ozone originally come from?
The ozone originally comes from the oxygen gas. It gets converted into ozone by UV rays.
What is the major atmospheric by product of photosynthesis and where does it come from?
Oxygen which comes from the synthesis of glucose. Oxygen is the by product of 6CO2 + 6H2O to make C6H12O6 releasing three Oxygen (O2) molecules for every molecule of glucose produced.
Where did hummingbirds originally come from?
were did hummingbirds originally come from
How water scorpion breathe?
Water scorpions have air tubes that stick out of the water surface to take in atmospheric oxygen. They come up to the surface several like Dolphins and Whales.
How do eels get oxygen?
Like most fish or other aquatic creatures, they have gills that take in oxygen from the water they swim in.
I don't understand how CPR works we breathe in oxygen and we exhale CO2 so how come during CPR when we breathe into the person we are exhaling CO2 into there body insted of oxygen?
Atmospheric air has about 20.5% oxygen and our lungs only extract about 4.5% oxygen, so the air we exhale has about 16% oxygen, 4.5% CO2. The air we breathe into the victim then has 16% oxygen for their lungs to extract oxygen from.
Where does earths atmosphere come from?
Plants
