Which bacteria are responsible for the conversion of ammonia into nitrite ions and nitrite into nitrate ions,respectively?

One of the ways in which the nitrogen of the atmosphere is converted into nitrate for plants is by the action of

Thiobacillus is a group of bacteria helpful in carrying out

Match Column $- I$ with Column $- II.$

Column $- I$	Column $- II$
$(a)$ Nitrococcus	$(i)$ Denitrification
$(b)$ Rhizobium	$(ii)$ Conversion of ammonia to nitrite
$(c)$ Thiobacillus	$(iii)$ Conversion of nitrite to nitrate
$(d)$ Nitrobacter	$(iv)$ Conversion of atmospheric nitrogen to ammonia

Choose the correct answer from the options given below.

$A-$ In nature,lightning and ultraviolet radiation provide enough energy to convert nitrogen to nitrogen oxides.
$R-$ Industrial combustion,forest fires,automobile exhausts,and power-generating stations are also sources of atmospheric nitrogen oxides.

Nitrifying bacteria