The higher concentration of which gas in air can cause stiffness of flower buds ?

High concentration of calcium oxalate can cause kidney stones.

‘X’ is a gas that is poisonous to both plants and animals. The following have been reported regarding ‘X’ : I. In low concentration, it causes respiratory diseases eg. Asthma, bronchitis, emphysema in human beings II. It causes irritation to the eyes, resulting in tears and beings. III. High concentration of X leads to stiffness of flower buds which eventually fall off ‘X’ is

Which plant hormone causes growth of lateral buds?

High concentration of hydrocarbon pollutant in atmospheric air causes