MCQ
Pyrethrin is a common ingredient of:
- AMosquito coils
- BFly sprays
- CMosquito mats
- DAll of the above
Explanation:
Pyrethrin is an ingredient insecticide prepared from pyrethrum flowers which include daisies and chrysanthemums. Pyrethrins act against a wide range of pests from flies and gnats to ticks and lice. It is widely used as a mosquito controlling agent. They affect the nervous system of these arthropods and sometimes causing them to leave before they finish feeding.
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| $(a)$ Fourth trophic level | $(i)$ Crow |
| $(b)$ Second trophic level | $(ii)$ Vulture |
| $(c)$ First trophic level | $(iii)$ Rabbit |
| $(d)$ Third trophic level | $(iv)$ Grass |
Select the correct option :
$(a)\quad(b) \quad(c) \quad(d)$
