Question : Whatis greenhouse effect ? Discuss the effect of increased level ( between540 and 970 ppm) of carbondioxide gas on the growth of C_(3) plants .

Question : Whatis greenhouse effect ? Discuss the effect of increased

1.	Question : Whatis greenhouse effect ? Discuss the effect of increased level ( between540 and 970 ppm) of carbondioxide gas on the growth of C_(3) plants .
Answer» Solution :Asa result of the increase in greenhouse gases like CO, CFCs, `CH_(4), N_(2)O` etc., the ENVIRONMENTALTEMPERATURE increases at surfacelevel. This process is calledgreenhouseeffect. `CO_(2)` is the most abundant greenhouse gas in the atmosphere. Increases in the LEVEL of `CO_(2)`leads to `CO_(2)`fertilization whihccauses increase in the gorwthof `C_(3)` plantsby 30%.