Science, asked by vidhinehra46, 9 months ago

a)
54. BOD and COD in sewage are
(a) 200 and 200
C) 200 and 400
Smallest unit of matter is:
and
ppm respectively. (201
(b) 100 and 200
(d) 300 and 400

Answers

Answered by srushtimunnoli

0

....... )............

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