In a lake, phytoplankton grow abundant in
Littoral zone
Limnetic zone
Profundal zone
Benthic region
Which of the following are the essential sources for releasing in the atmosphere?
$I.$ Burning of wood
$II.$ Volcanic activity
$III.$ Combustion of organic matter
$IV.$ Fossil fuels
Choose the correct option
If $10,000 \;J$ of energy fall on piece of land, then what is energy available at $T_2$ level?
Frog, that feeds on insects, is a
Mark the correct match
Identify the likely organisms $(1), (2), (3)$ and $(4)$ in the food web shown below.