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Hi mam this is Ajay katiyar from India your lecture is excellent pls make videos other subjects of civil engineering .
I think there is a mistake in the size of protozoa which are bigger than bacteria as indicated in the video
Hi mam this is Ajay katiyar from India your lecture is excellent pls make videos other subjects of civil engineering .
I think there is a mistake in the size of protozoa which are bigger than bacteria as indicated in the video