Q21. Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences?
- Pollination of some plants could be adversely affected
- There could be drastic increase in the fungal infections of some cultivated plants
- It could lead to a fall in the population of some species of wasps, spiders and birds
Select the correct answer using the codes given below
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
The correct answer is 1 and 3 only.
- Butterflies (also known as bees)
- It plays an important role in plant pollination and crop production.
- Butterflies move pollen grains from one location to another.
- Hence, if the population of certain butterfly species declines dramatically, pollination of some plants may suffer. Hence, Statement 1 is correct.
- Because there are no reasons (that have been proven) for a significant increase in fungal infections in some cultivated plants. Hence, Statement 2 is not correct.
- It may cause a decrease in the population of some wasps, spiders, and birds because these species are the predators of butterflies, and if the population decreases, these predators will lose their main food source. Hence, Statement 3 is correct.
For UPSC Prelims Resources, Click here
For Daily Updates and Study Material:
Join our Telegram Channel – Edukemy for IAS
- 1. Learn through Videos – here
- 2. Be Exam Ready by Practicing Daily MCQs – here
- 3. Daily Newsletter – Get all your Current Affairs Covered – here
- 4. Mains Answer Writing Practice – here
Visit our YouTube Channel – here
