UPSC Civil Services 2019 Prelims General Studies Paper I

- Cobras, the pythons, the keelbacks don't lay eggs so they're called 'viviparous' as bring out live young. So, #4 is right. Answer could be B, C or D, in all these options, #2 is common so we've to accept 'Some species of fish are herbivores' are true without verification.
- Depending on the species, sea turtles may be carnivorous (meat eating), herbivorous (plant eating), or omnivorous (eating both meat and plants). So #1 is right and by elimination we are left with answer D: all statements are correct.