Biology - Single MCQs (Page 279)

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Q2781. The undesirable change in physical, chemical or biological characteristics of ai...Q2782. Noise is measured using sound meter and the unit is?...Q2783. Cement factory labourers are prone to?...Q2784. 5th June is observed as?...Q2785. A river with high BOD value is?...Q2786. BOD stands for?...Q2787. Minamata disease was caused by pollution of water by?...Q2788. Which of the following is the major cause of pollution?...Q2789. The meristem which occurs between mature tissues is known as _________meristem?...Q2790. Panda belongs to the same family as that?...