Q. Consider the following:
1.It can hamper the production of melatonin.
2.It has effects on the hatching of clownfish eggs.
3.It can reduce the amount of original light of stars.
Which of the above is/are the consequence(s) of the artificial sky glow?

[A] 2 only

[B] 1 and 2 only

[C] 1 only

[D] 1. 2 and 3

Answer: B

Explanation – The consequences of the artificial sky glow are – deter sea turtles from coming ashore to nest, young burrow-nesting seabirds don’t take flight unless the nesting site becomes dark, clownfish eggs don’t hatch when exposed to artificial light at night, killing the offspring, allows insect predators to hunt for longer and can hamper the production of melatonin.

Source: ForumIAS