Draw a diagrammatic sketch of oxygen cycle in nature?

Draw diagrammatic sketch of oxygen cycle in nature.

Draw a diagrammatic sketch of phosphorus cycle.

Draw a diagrammatic sketch of energy flow in an ecosystem?

Make a diagrammatic sketch of life cycle of a red algal plant.

Explain the oxygen cycle in nature.

Explain the oxygen cycle in nature.

Draw a diagrammatic sketch of biogas plant and label its various components given below gas holder, sludge chamber, digester, dung + water chamber.