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Life would not be possible with only oxygen, because plants need carbon dioxide. Animals need oxygen and breath out carbon dioxide, this is used by the plants in photosynthesis and the oxygen leaves the plant. All oxygen breathing organisms then use this oxygen and the cycle repeats itself.
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What would happen if photosynthesis stopped occurring throughout the world?
There would be less oxygen in the air.
Why the early Earth' s atmosphere could not have supported multicellular life?
Early Earth would have been un-inhabitable for humans because early earth's athmosphere would have been mainly carbon dioxide (co2) and water vapour. Then plants appeared which take in co2 and give out oxygen. Then small bacteria etc appeared Once there was enough oxygen in the earth for humans to breath in humans began to develop. So basically in the early earth there was not enough oxygen for humans breath. Improve: Don't forget the molten surface and constant battering by flying rocks!
How would the increasing number of photosynthesizing organisms on earth have affected both earth and its other organisms?
As the first photosynthetic organisms increased in number, the concentration of oxygen in Earth's atmosphere began to increase. Organisms that could respire aerobically would have evolved and thrived. The sun's rays would have converted much of the oxygen into ozone molecules that would then have formed a layer that contained more ozone than the rest of the atmosphere.
How is the process of photosynthesis central to sustaining life on earth?
Photosynthesis is critical as it converts sunlight, water, and carbon dioxide into glucose and oxygen, providing energy for plants and releasing oxygen into the atmosphere. This process is the foundation of the food chain, as plants are the primary producers that support all other life forms. Without photosynthesis, the Earth would not have enough oxygen and energy to sustain life as we know it.
What would happen if photosynthesis stopped happening on earth?
The plants that use photosynthesis would die because the plants would not create food. They would die of hunger. Without another source of food, most of the animals would likewise die off. Most life would die anyway because the oxygen released by the plants would no longer enter the atmosphere to be used in respiration. Photosynthesis is an irreplaceable part of the carbon cycle, on which the vast majority of life on Earth depends.
Could life exist on Earth if the air contained only oxygen?
No. The oxygen would be too concentrated and we would die.
Could life as we know it only exist on earth if air only contained oxygen?
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
What would life be without forests?
Life without forests is not possible. This is because these trees keep oxygen circulating in the air for animals to breathe.
Could life as know it exist on earth if air contained only oxygen?
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
Could life as we know exist on earth if air contained only oxygen?
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
Could life as we know it exist on earth if air contained-only oxygen?
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
Could life on earth if air contained only oxygen?
Not "life as we know it". Oxygen is poisonous, as all Scuba divers know; below about 30 feet depth, pure oxygen will kill you, and a few people react badly to oxygen in normal pressures. And without nitrogen and carbon dioxide, plants would be unable to live.
What gas in your atmosphere makes life possible?
oxygen
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.
Why isn't life possible on planet venus?
there is not water and oxygen
Is it possible for a moon to supprt life?
well not easily. they would need a big supply of oxygen. alot of special houses. it is possible but very unlikely they would do that. the closest thing to earth is mars though
Why human life is not possible on mars?
Because there is no water,oxygen,food.
