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"mango necrosis" is due to :...

"mango necrosis" is due to :

A

`CO_2`

B

CO

C

Boron

D

`SO_2`

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MBD-ENVIRONMENT ISSUES-EXERCISE
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  2. When huge amount of sewage is dumped into a river , the BOD will:

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  3. "mango necrosis" is due to :

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  9. What is the difference between BOD & COD?

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  14. Differentiate primary productivity and secondary productivity.

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  15. Differentiate in situ and ex-situ conservation.

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