Essential oils are made of:

What is a $Cactushouse$?

Distinguish between the functions of Ethylene and Abscisic Acid $(ABA)$ from the given statements:
$I -$ Induces closure of stomata.
$II -$ Initiates flowering in pineapple.
$III -$ Initiates germination in peanut seeds.
$IV -$ Synthesized in large amounts by ripening fruits.
$V -$ Plays an important role in seed development,maturation,and dormancy.
Identify the correct sequence for Ethylene and Abscisic Acid respectively.

Study the following statements.
$I.$ "$X$" hormone promotes root growth and root hair formation, thus helping the plants to increase their absorption surface.
$II.$ "$Y$" hormone induces flowering in mango and also promotes rapid internode/petiole elongation in deep-water plants, hence helping leaves or upper parts of the shoot remain above water.
$III.$ "$Z$" hormone inhibits seed germination, increases the tolerance of plants to various stresses, and plays an important role in seed development, maturation, and dormancy.
Identify the correct names of hormones marked as $X$, $Y$, and $Z$.

Read the following statements regarding $\text{PGRs}$:
$A.$ Ethylene also promotes root growth and root hair formation.
$B.$ Natural cytokinins are synthesized in regions where rapid cell division occurs.
$C.$ $2,4-D$,widely used to kill monocotyledonous weeds,does not affect mature dicotyledonous plants.

Pick out the correct statements.
$I.$ Cytokinins especially help in delaying senescence.
$II.$ Auxins are involved in regulating apical dominance.
$III.$ Ethylene is especially useful in enhancing seed germination.
$IV.$ Gibberellins are responsible for immature falling of leaves.