Why do fishes in an aquarium thrive better if green plants are growing there?

Aerobic atmosphere is maintained by

Choose the correct sentence$(s)$ from the following:
$(i).$ In $C_4$ plants,the first $CO_2$ acceptor is $PEP$.
$(ii).$ Light energy is absorbed by $PS-II$ at $680 \ nm$ in the process of photosynthesis.
$(iii).$ The $P_{680}$ chlorophyll system is present in $PS-I$.

Which statement is correct for photosynthesis?

$A$ photosystem is composed of $..............$.

Match the following columns:

Column-$I$	Column-$II$
$A$. Light reaction	$1$. Membranous system
$B$. Dark reaction	$2$. $NADPH$ and $ATP$ product
	$3$. Starch

Select the correct matching: