vinyl chloride, ethylene, ethyl alcohol, None of the above" /> vinyl chloride, ethylene, ethyl alcohol, None of the above" /> vinyl chloride, ethylene, ethyl alcohol, None of the above" />
Correct Answer : ethylene
Correct Answer : Mixed chlorofluoro-hydrocarbons
Correct Answer : Formic acid
Correct Answer : Biogeochemical cycles
The biogenetic nutrients are essential elements required by organisms for their body-building and metabolism which are provided by earth and returned to earth after the death of organisms and/or through excreta of animals. So, the correct answer is 'Biogeochemical cycle'