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ultra-violet radiation
gamma radiation
infra-red radiation
microwave radiation
Nitrogen fixation is a process of
Nitrogen is an essential constituent of all
Noise or Noise pollution measured in:
Non-Metal found in Liquid state is -
Normal blood pressure of man is
Normal Human blood pressure is
Now-a-days yellow lamps are frequently used as street lights. Which among the given gases is used in these lamps -
Nuclear fallout contains
Nucleotide have same atomic number are called:
Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by