Lesson eLearning

Which of the following is NOT an advantage of crop rotation?

medium MCQ 3 marks Class 8 · Science · Crop Production and Management
  1. a) Improves soil structure
  2. b) Reduces disease pressure
  3. c) Increases nitrogen fixation
  4. d) Increases pest population
Answer
d) Increases pest population

The correct answer is d) Increases pest population — Step 7: Conclude that (d) is the correct choice.

Step-by-step solution

  1. Step 1: Identify advantages of crop rotation: improves soil structure, reduces disease pressure, increases nitrogen fixation, and improves soil fertility.
  2. Step 2: Compare each option to the list of advantages.
  3. Step 3: Option (a) improves soil structure – this is an advantage.
  4. Step 4: Option (b) reduces disease pressure – this is an advantage.
  5. Step 5: Option (c) increases nitrogen fixation – legumes in rotation increase nitrogen, so this is an advantage.
  6. Step 6: Option (d) increases pest population – this is a disadvantage, not an advantage.
  7. Step 7: Conclude that (d) is the correct choice.
Common mistake: Confusing advantages with disadvantages of crop rotation

Concept tested: Crop rotation benefits

Published · How this solution was prepared and checked

← All Crop Production and Management questions