Amount of nitrogen fixed electrochemically and photochemically is
$140 $ $mg/$$m^2$$/yr$
$78$ $mg/$$m^2$$/yr$
$35$ $mg/$$m^2$$/yr$
$15$ $mg/$$m^2$$/yr$
It’s obvious.
Temperate evergreen forests are found in
In India, rain forests are found in
The correct sequence of plants in a hydrosere is
Which of the following communities is more vulnerable to invasion by outsides animals and plants
The amount of usable energy, which is available for doing work, when the temperature and pressure are uniform throughout the system is called
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