
We are searching data for your request:
Forums and discussions:
Manuals and reference books:
Data from registers:
Upon completion, a link will appear to access the found materials.
The oxygen cycle is closely linked with the carbon cycle, since the flow of both is associated with the same phenomena: photosynthesis and breath.
Photosynthesis processes release oxygen into the atmosphere, while breath and combustion consume him.
Part of the stratosphere's O2 is transformed by the action of ultraviolet rays on ozone (O3). This forms a layer that acts as a filter, preventing the penetration of 80% of ultraviolet rays. Constant release of chlorofluorocarbons (CFCs) leads to the destruction of the ozone layer.
You are absolutely right. In this something is and is an excellent idea. I keep him.
I think this sentence is brilliant
Bravo, a great idea
In my opinion you commit an error. I can prove it. Write to me in PM, we will discuss.