1.
Microbes that breakdown the complex organic matter into simple substances like carbon, nitrogen, water, etc., are
2.
Which one of the following is no used for construction of ecological pyramids?
3.
Which element is formed by the weathering of rocks and absorbed by plant from the soil?
4.
Given diagram represents a pyramid of biomass in an aquatic system


Identifies of and select correct options
5.
This type represents"