Q. Which of the following is / are deep ocean phenomena?

1. Marine snow
2. Sea snot
3. Algal Bloom
4. Milky Seas

Select the correct answer from the codes given below:
Answer: Only 1
Notes: Marine snow is organic detritus that continuously sinks from upper ocean layers to the depths, playing a role in the biological pump. Sea snot, or sea saliva, can suffocate marine life by covering the water's surface. Algal blooms occur in freshwater and marine environments due to excess nutrients, leading to oxygen depletion. Milky seas, or sea sparkle, are caused by luminescent plankton like Noctiluca scintillans.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.