Draining stagnant water helps control malaria because

  1. it kills the adult mosquitoes directly
  2. mosquito larvae develop in water
  3. mosquitoes drink only clean water
  4. Plasmodium lives in soil
Answer

B) mosquito larvae develop in water

Removing breeding sites breaks the life cycle. O Level Biology · Topic 12 Disease and Immunity · 12.1 Disease

Biology MCQ · More O Level Biology: Disease and Immunity MCQs · Practise