In which part of the open sea producers are found
Maximum absorption of rainfall water is done by
The amount of usable energy, which is available for doing work, when the temperature and pressure are uniform throughout the system is called
What is true about the phosphorus cycle?
$I.$ Rocks are the natural reservoirs of phosphorus
$II.$ Weathering of sedimentary rocks makes phosphate available to the soil
$III.$ Herbivores and carnivores obtain phosphorus from plant directly or indirectly Choose the correct option
Which of the following ecosystem has the highest gross primary productivity