How is nitrogen gas fixed biologically?
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A pollutant can be defined as the substance that causes pollution in the environment. The water, air and other components of the environment are affected by these pollutants. Some of the common pollutants are smoke, dust particles, chemical waste, and CFCs.
The given pollutants can be matched as follows:
The number of electrons in a neutral atom is equal to its Atomic Number.
Therefore, Beryllium (Be) has 4 electrons