How much carbon is dissolved in the oceans?
$61 \;\%$
$71 \;\%$
$81\; \%$
$51\; \%$
In India, rain forests are found in
Breakdown of detritus into smaller particles by earthworm is a process called
$CO_2$ content of atmosphere has increased in the last $150$ years from
Phytoplanktons are found in which of the following shallow water region zones?
In the vast marine ecosystem, certain sea develop red colouration. This red colour is due to the presence of large population of which one of the following organisms?