$A-80\%$ of total global carbon is dissolved in ocean.
$R$- dry weight of organisms have $49\%$ carbon.
$A$ and $R$ both are correct.
$A$ and $R$ both are incorrect.
$A$ is correct, $R$ is incorrect.
$A$ is incorrect, $R$ is correct.
Least productive ecosystem is
Which of the following is an example of man-made ecosystem?
Sun basket' is
Is the common edible mushroom an autotroph or a heterotroph ?
Which one of the following is a characteristic feature of cropland ecosystem?