This document discusses environmental pollution in Nigeria. It identifies the four main types of environmental pollution as land, water, air, and noise pollution. It also classifies pollutants as either natural or human-caused. Natural pollutants like flooding and desertification occur naturally and are out of human control, while human pollutants result from activities like burning bushes, vehicle emissions, gas flaring, and oil spills. The document analyzes several Nigerian laws aimed at curbing different types of pollution but notes they are often not properly enforced and punishments are not strong enough to deter violations.