Phosphorus is major constituent of
$(1)$ Biological membranes
$(2)$ Nucleic acid
$(3)$ Cellular energy transfer system
$(4)$ Protein synthesis
All given
Both $1$ and $2$
$2, 3$ and $4$
$1, 2$ and $3$
An individual transitional communities in ecological succession are termed as
Term ‘biosphere’ is used for the zone of earth where life exists
What is the medium by which carbon cycle takes place?
Tropical rain forests are found in
Local water cycle involves