Algal scums float on surface of water because

Options :
  1. CH4 accumulation in scum
  2. O2 accumulates in scum
  3. Algal become light in day
  4. CO2 accumulates in scum
Answer and Explanation :-

Answer: Option 2


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Optimum temperature for photosynthesis is

Next Question : Chlorophyll contains

Click here for online test on Physiology


 (Getemail alerts when others member replies)

Death is no more than passing from one room into another. But there's a difference for me, you know. Because in that other room I shall be able to see.
-Helen Keller