Ozone is a tri oxygen molecule. It is formed in a natural process by the action of UV light on oxygen molecule.
There are only two elements that comprise water, Hydrogen and Oxygen.
Ozone is neither a compound or atom, a compound is two or more different elements chemically combined, and an atom is a single small particle of an element. Well ozone's chemical formula is O3, so ozone is a molecule (two or more elements chemically combined, that are the same or different).
Detection of errors and retransmission of frames that are received in error.
A CFC (Chlorofluorocarbon) comprises carbon, chlorine, and fluorine atoms. These compounds are typically used as refrigerants, propellants, and solvents, but they are harmful to the environment as they contribute to ozone depletion in the atmosphere.
Silver is an element, there are no other elements in it.
Consider the mapping between two sets, A and B. To each element of A is associated a unique element from the set B. The elements of set A which are mapped (the inputs) comprise the domain. The corresponding elements from set B comprise the range.
There are no elements in ozone layer other than ozone. It is important as it protect against UV's.
Earth's atmosphere is roughly 78% Nitrogen & 21% Oxygen.
It isn't. By definition a compound consists of two or more elements. Ozone consists only of one element: oxygen. It is considered an allotrope.
The CFC's are the elements affecting the ozone layer. Not marginally but the effect can be termed as fatal.
Calcium, sulfur, hydrogen and oxygen.
The group A elements together comprise one family called as 'Alkali metals'.