Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences? 1. Pollination of some plants could be adversely affected. 2. There could be a drastic increase in the fungal infections of some cultivated plants. 3. It could lead to a fall in the population of some species of wasps, spiders and birds. Select the correct answer using the code given below:

1. Pollination of some plants could be adversely affected — Correct. Butterflies are important pollinators for many flowering plants, so a sharp decline can reduce pollination in some species.

2. There could be a drastic increase in the fungal infections of some cultivated plants — Incorrect. Butterflies are not known as major controllers of fungal diseases in crops; fungal infections are linked more to humidity, pathogens and crop conditions, not butterfly population.

3. It could lead to a fall in the population of some species of wasps, spiders and birds — Correct. Butterflies and especially their larvae are part of food chains; some wasps, spiders and birds feed on them, so their decline can affect predator populations.

Therefore, statements 1 and 3 are correct.