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Science Test Space
Class 9
Environmental Science
Biogeochemical cycles
3.
Components of nitrogen and carbon cycle
Question:
2
m.
Choose the correct answer
:
1
.
Process of formation of nitrate through bacteria is called __________.
ammonification
nitrogen assimilation
nitrogen fixation
nitrification
2
.
Nucleic acids is made of __________ which is used by plants to prepare food.
oxygen
nitrogen
carbon
carbon monoxide
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