What is a primary cell? Give two examples.
Primary cell:
The cells from which the electric energy is derived from an irreversible chemical reaction are called primary cells.
Two examples of primary cells are:
(a) What is meant by a solution ? Give two examples of solutions.
(b) What is suspension ? Give two examples of suspensions.
(c) What is a colloid ? Give two examples of colloids (or colloidal solutions).
Which of the following is an example of a primary cell?
What are primary pollutants? Give examples.
Which kinds of organisms are primary consumers? Give two examples of primary consumers.