MCQ
Which chemical compound/molecule supplies electrons continuously to $PS-II$?
- A$CO _{2}$
- B$O_{2}$
- ✓$H _{2} O$
- D$NADPH$
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$R$ - With the help of $PCR$ thousand of $DNA$ copies are formed
$I$. reduced reliance on chemical pesticides
$II$. reduced post-harvest losses
$III$. increased efficiency of minerals used by the plants
$IV$. enhanced nutritional value of the food
Which of the statements given above are correct?