Essential oils are made of:

Plant hormones are usually:

Desert can be converted into greenland by

Match the following (Column-$I$ with Column-$II$):

Column-$I$	Column-$II$
$a.$ Weedicide	$(i)$ $GA_3$
$b.$ Bolting	$(ii)$ Cytokinin
$c.$ Thinning of cotton	$(iii)$ Ethylene
$d.$ Lateral shoot growth	$(iv)$ $2, 4-D$

$I.$ Kinetin is a degradative substance from $DNA$.
$II.$ $ABA$ is present in all plants including lower plants.
$III.$ Low ratio of cytokinin to auxin favours root formation only.
$IV.$ $ABA$ is synthesized catabolically through glycolysis pathway.
Choose the correct combination of options.

Identify the incorrect pair$(s)$ from the following: