What is the Most Widely Used Herbicide in the World

Question

What is the most widely used herbicide in the world, 2,4-D, a synthetic form of?
A) ethylene
B) salicylic acid
C) gibberellin
D) auxin

Accepted Answer

2,4-D is a synthetic form of auxin, a class of plant hormones that regulate growth and development. It is used as a herbicide to control broadleaf weeds.