Q1076
In green houses which of the following gas not found abundantly?
A.
CO2
B.
NH4
C.
N2O
D.
O2
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
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.