ExamPlay Light Logo
Se connecter

WAEC - Chemistry (1990 - No. 18)

Which of the following pollutants is biodegradable ?
Sewage
Plastics
Metal scrape
Lead compounds
Hydrogen sulphide

Commentaires (0)

Connectez-vous pour commenter
Publicité
BrainBehindX Inc Logo
©2026; Alimenté par BrainBehindX Inc