Every pesticide develops its own failure as its repeated use leads to:
Correct answer: D. The development of resistant pest varieties
- A. Increase in weed population
- B. Simplification of food web
- C. Reduction in population of useful birds
- D. The development of resistant pest varieties
Explanation
Repeated pesticide use selects the naturally resistant individuals, which survive and reproduce until the pest population becomes less controllable. This is evolutionary resistance, not an immediate failure of the pesticide’s chemical action.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Forest Ecology
837 free Forest Ecology MCQs from Forestry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Forestry questions like this
Forestry is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Forest Ecology questions
The major drawback of DDT as a pesticide is that:
As compared to tap water the BOD of sewage polluted water shall be:
In big cities, air pollution is mainly due to:
How CO emitted by automobiles prevents transport of O2 in the body tissues?
Sewage drained into water bodies kills fishes because:
Effect of pollutions first and most marked on: