In green houses which of the following gas not found abundantly?
A. CO2
B. NH4
C. N2O
D. O2
Answer: Option D
Solution (By Examveda Team)
Although plants respire and produce oxygen (O2) then also the percentage of available oxygen gas is not found abundantly in the greenhouse.Levels of 8mg/l of oxygen are considered to be good for greenhouse production.
Whereas CO2, NH4 and N2O are available in abundance in the greenhouse.
This Question Belongs to Agriculture >> Agronomy
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