Context: You are asked to prepare a short composition and related responses on the theme of plastic pollution, its causes, consequences, and remedies. Use the context to complete the sub-questions below.

a. Write a 200-word composition on "Plastic Pollution".

b. Identify and explain three major sources of plastic pollution.

c. List four ways plastic pollution harms human health and the environment.

d. Propose five practical measures individuals and governments can implement to reduce plastic pollution.