Resistance to pests and diseases is often provided by
A. Ca
B. N
C. K
D. Air
Answer: Option C
Solution (By Examveda Team)
Resistance to pests and diseases is often provided by K.Resistance is defined as a change in the sensitivity of a pest population to a pesticide, failing a correct application of the pesticide to control the pest.
The adequate concentration of potassium nitrate improves plant resistance to pathogens or pests attack boosting tolerance of the crops.

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