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Which gas in earth's atmosphere tells us that there is life on earth?
Oxygen, Nitrogen and Carbon dioxide, in that order. The most important element to sustaining life is Oxygen.
Why does oxygen occur naturally?
It is a byproduct of the life processes on Earth. Earth's early atmosphere contained no Oxygen, but Earth was slowly Terra-formed by life and obtained an Oxygen rich atmosphere.
Why is oxygen atoms important?
Oxygen atoms are important because oxygen is necessary to all higher life forms.
The right combination of temperature water and oxygen?
Supports life on earth
Where is the oxygen element found in real life?
It is found as Oxygen Gas (O2). This is about 1/4 of the earth's atmosphere (air).
Where does oxygen come from and why is it important to life on earth?
Oxygen is important as it the breathing sources. It also forms ozone which is vital for life on earth.
Which gas in earth's atmosphere tells us that there is life on earth?
Oxygen, Nitrogen and Carbon dioxide, in that order. The most important element to sustaining life is Oxygen.
What are the two main reasons that an oxygen-rich atmosphere is important for life on Earth?
Oxygen in the atmosphere is important for life for two main reasons. First, oxygen makes up the ozone layer. The ozone layer is in the upper part of the atmosphere, and is made of O3 molecules-a particular type of oxygen molecule. It blocks harmful radiation from the sun and keeps it from reaching Earth's surface. Without an ozone layer, intense radiation from the sun reached the early Earth's surface, making life almost impossible. Secondly, oxygen in the atmosphere is necessary for animals, including humans, to breathe. No animals would have been able to breathe in Earth's early atmosphere.
Why are phytoplankton important to life?
phytoplankton provide most of the oxygen to earth.
Why is algae important to life on earth?
Because it produces oxygen for the world
Why is oxygen such an important part of the earth's atmosphere?
Oxygen is necessary for most organisms to carry out their life functions.
Why is algae so important to life on Earth?
Because it produces oxygen for the world
What reasons would have made it difficult for life to exist on early Earth?
The lack of oxygen and the extreme temperatures
Why is the triatomic form of oxygen so important to life on earth?
Ozone is the triatomic form of oxygen. It is important as it blocks the UV rays of the sun.
What gas important to life was absent from earth's earliest atmosphere?
It's what we breathe, Oxygen.
What are some reasons why water is important?
life on earth depends on it an because we need it to survive
Why was it important for the buildup of oxygen in the atmosphere?
it made it possible 4 it to be plants animals and human life
