Direction: In the following questions, sentences are given with blanks to be filled with an appropriate word(s). Four alternatives are suggested for each question. Choose the correct alternative out of the four.

Serious threat to our ecology and environment can be ______ with organic cultivation

Options

A. hastened
B. impeded
C. aggravated
D. combated

Answer

D

Explanation

combated (Verb) : stopped something unpleasant or harmful from happening or from getting worse
hastened (Verb) : to make something happen sooner or more quickly
impeded (Verb) : delayed or stopped the progress of something
aggravated (Verb) : made an unpleasant situation worse
Here, combated is the right usage.