Question

b-nine is a commercially used chemical that ______.
a. shortens or dwarfs plants
b. helps cuttings root faster
c. makes plants taller
d. causes plants to bloom sooner

Explanation:

B - Nine (daminozide) is a plant growth regulator. Its primary function is to inhibit stem elongation, which results in shortening or dwarfing plants. Option b is related to rooting hormones like auxins, option c is the opposite of what B - Nine does, and option d is related to flowering hormones or regulators different from B - Nine.

Answer:

a. shortens or dwarfs plants