345227 A naturally occuring phenomenon that is responsible for heating of earth's surface and atmosphere due to the presence of certain gases in the atmosphere is

345228 $\mathrm{X}$ is a greenhouse gas, produced by incomplete combustion of biomass. 20% of green house effect is due to $\mathrm{X}$ gas. Flooded paddy fields, marshes and cattle are major sources of $\mathrm{X}$. Identify the gas $\mathrm{X}$.

345227 A naturally occuring phenomenon that is responsible for heating of earth's surface and atmosphere due to the presence of certain gases in the atmosphere is

345228 $\mathrm{X}$ is a greenhouse gas, produced by incomplete combustion of biomass. 20% of green house effect is due to $\mathrm{X}$ gas. Flooded paddy fields, marshes and cattle are major sources of $\mathrm{X}$. Identify the gas $\mathrm{X}$.

345229 How many among the following gases are commonly considered as green house gases? Carbon dioxide, methane, ${\mathrm{N}}_2\mathrm{O}$, acetylene, CFC, Ozone, fullerene.

345227 A naturally occuring phenomenon that is responsible for heating of earth's surface and atmosphere due to the presence of certain gases in the atmosphere is

345228 $\mathrm{X}$ is a greenhouse gas, produced by incomplete combustion of biomass. 20% of green house effect is due to $\mathrm{X}$ gas. Flooded paddy fields, marshes and cattle are major sources of $\mathrm{X}$. Identify the gas $\mathrm{X}$.

345229 How many among the following gases are commonly considered as green house gases? Carbon dioxide, methane, ${\mathrm{N}}_2\mathrm{O}$, acetylene, CFC, Ozone, fullerene.