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Why did the earth's atmosphere change after it was first formed?
The earths atmosphere has significantly altered over the years. The process of the earth's atmosphere was recognized and evolved 2.7 billion years ago, forming the nitrogen-oxygen atmosphere that exists today. This change enabled the formation and beginning of the ozone layer (which along with magnetic fields) block solar radiation.
Give three examples from everyday life of how the atmosphere supports and protects life?
Some three examples of how the atmosphere supports and protects life includes blocking out harmful UV rays from the sun and balancing the carbon dioxide levels. Most life forms need oxygen to survive and this comes from the atmosphere.
If all life on Earth were to cease the atmosphere would revert to its primitive oxygen-poor composition and become poisonous to modern plants and animals?
true
What organism added oxygen to your atmosphere and why?
Plants, trees, and grass put oxygen into the air.
What does respiration remove from the atmosphere?
Carbon dioxide is being released. As you breathe in you inhale fresh oxygen, but as you breathe out your body releases carbon dioxide.
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 would have happened to the animals if there was no oxygen from the beginning?
There was no oxygen in the beginning. Plant life developed and released oxygen gas into the atmosphere over a long period of time.If that had never happened, there would not be much if any free oxygen in the atmosphere and aminal life as we know it would never have developed.
Can you name the gas that exist in the atmosphere that we cant live with out?
oxygen
Why on Earth got atmosphere?
Earth has an atmosphere because gravity keeps gases from escaping into space. The atmosphere helps regulate temperature, protects against harmful radiation from the sun, and provides the oxygen needed for life to exist.
Is oxygen always in diatomic state?
Oxygen has a diatomic molecule and ozone a triatomic molecule.But also monoatomic oxygen exist.
Does lightning need oxygen to exist?
No, lightning does not require oxygen to exist because it is an electrical discharge that occurs in the atmosphere. Lightning is the result of an imbalance of electrical charges in the atmosphere and is not dependent on the presence of oxygen.
What planet has water oxygen and regulated temputurs?
Earth is the planet that has water, oxygen, and regulated temperatures that can support life as we know it. Its atmosphere and location within the habitable zone allow for these conditions to exist.
Does oxygen exist?
Yes, oxygen is a naturally occurring element that is essential for life on Earth. It is a colorless, odorless gas that makes up about 21% of the Earth's atmosphere. Oxygen is also found in compounds such as water and carbon dioxide.
On earth oxygen usually exist as what?
Oxygen usually exists as a diatomic molecule, O2, in the Earth's atmosphere.
How did the oxygen in the atmosphere get there?
The oxygen in Earth's atmosphere has been generated, over geological time, by the plant life on Earth.
Can life exist on mars why or why not?
No life is known to exist there. It is too cold, too dry, and there is very little atmosphere.
How does the atmosphere preserve life on Earth?
There is oxygen in the atmosphere. This lets us breathe.
