Physics, Chemistry and Biology: Post your doubts here!

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q3 Yeah but you don't need to shade!
q4- your question why the number of bubbles not counted because THE bubbles might be different sizes so different volumes
But when carrying out such experiments we do count the no of bubbles :S
and say it's an inaccurate method
 
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But when carrying out such experiments we do count the no of bubbles :S
and say it's an inaccurate method
Here you need reliable results! and they are asking you to use the apparatus here the apparatus can be easily used by reading the volume
 
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Biology Problem.. I am unable to understand the Process of Ovulation and Development of egg (ovum) in the ovaries Pleasee help!!
 
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