The nitrogen cycle is an example of a(n) biogeochemical
cycle. Its processes include the conversion of atmospheric nitrogen into ammonia, which is called
Choose... photosynthesis, denitrification, nitrogen limitation, nitrogen fixation
. Nitrogen is returned to the atmosphere in the process of
Choose... denitrification, nitrogen fixation, nutrient return, nitrogen limitation

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

North carolina ranks second in christmas tree production has nothing to do with biotechnology

C) reflection (i also looked up the other choices just to make sure)