WAEC Chemistry 2020 Objective — Question 50

Question 50 of 50 from the West African Examinations Council (WAEC) Chemistry 2020 Objective paper, with the correct answer and a full explanation.

An example of a biodegradable pollutant is

A. plastic
B. sewageCorrect
C. carbon (II) oxide
D. hydrogen sulphide

Explanation

A substance that can be broken down into simple harmless forms by microorganisms is said to be biodegradable, while one that cannot be so broken down is said to be non-biodegradable. Sewage is biodegradable.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Chemistry 2020 Objective More Chemistry past papers