MCQ
Primary treatment is the
- ✓physical removal of large and smallparticles from sewage
- Bbiological removal of large and smallparticles from sewage
- CBoth $(A) $ and $ (B)$
- Dchemical removal of large and smallparticles from sewage
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$I$. Abiotic agencies
$II$. Biotic agencies
$III$. Insects only
Select the correct option for the given question
$(i)$ $RNA$ can directly code for the synthesis of proteins
$(ii)$ It is very common process to synthesis $DNA$ from $RNA$
$(iii)$ $RNA$ is used as genetic material only in human
$(iv)$ One polynucleotide chain is present in $RNA$
Choose of correct option for $A$ and $B$