Major utilisation of carbon from atmosphere is through
Decomposition
Photosynthesis
Respiration
Human activities
Local water cycle involves
Crystalline rocks are natural source of biogenetic element
In which of the following habitats does the diurnal temperature of soil surface vary most
Rainfall occurs in chapparal during
Phosphorus is the major constituent of
$I.$ biological membranes
$II. $ nucleic acids
$III.$ cellular energy
Choose the correct option