After the earth was created, there was just one gigantic ocean. At some point, single-celled organisms formed - the first plants. They made their own energy using the sun and carbon doixide (photosynthesis) and one of the waste products was oxygen. As they multiplied, more and more oxygen was produced, forming the start of today's atmosphere.
Oxygen is a direct result of life on earth, and photosynthesis didn't start until about 3 billion years ago
The rapid rise of atmospheric oxygen illustrated in the geological record by layers of iron oxides.
if an oak tree uses 50gallons (200ltrs) of water per day, how does the deforestation of saouth America and Burma, for teak wood affect the rising water table of the planet. All the water must still be on the planet, this was fresh water, now transmitted to the atmosphere. This may raise the water table and cause salination. Is that feasible
The following changes are average changes, which means there might be exceptions more or less as we rise upward. But in general as elevation increases, on average: Temperature decreases Atm pressure decreases Wind velocity increases Gamma radiation increases Overhead turns black More and more stars are seen Shape of the planet as a sphere becomes obvious
One bottle would have more pure oxygen then the other one, since oxygen is more dense then air, and will not rise into the atmosphere or combine with air quick
ultraviolet radiation
The rapid rise of atmospheric oxygen illustrated in the geological record by layers of iron oxides.
Oxygen in the air levels are affected by energy production greatly, due to the way that oxygen moves. Oxygen can take over many other components, which can cause air levels to rise.
Yes, because without the many trees in the rainforest, the Earth's CO2 levels will rise and O2 levels will fall. Also, there are many undiscovered plants in the rain forests of earth that could help humans.
With increased breathing, levels of carbon dioxide in the blood drop and levels of oxygen rise.
The warmth heats up the icebergs in the sea. this causes sea levels to rise....
sea levels will rise due to melted glaciers
Osteoclasts activity is inhibited and blood calcium levels rise.
The rise and fall of sea levels are affected very much depending on the type of movements of the earth and the moon.
Hydrogen gas mixes with oxygen to form water through a chemical reaction known as combustion. When hydrogen and oxygen combine in the presence of heat or a spark, they react to produce water vapor as a byproduct.
The observed increase in Earth temperatures is referred to as "global warming" and is blamed on increased levels of carbon dioxide and other gases. The rise is now addressed by the less-specific term "climate change".
Sea levels rise with the tides.
Islands are areas of land surrounded by water. They can be formed by volcanic activity, shifting tectonic plates, or erosion. Islands can vary greatly in size, from small atolls to large land masses like Greenland.