Question

Waste treatment as an ecosystem service involves the purification of water and soil through which mechanism?

Options

• Pollinator activity

• Predator-prey interactions

• Microbial decomposition

• Root nutrient absorption

Answer 1

Microbial decomposition is the primary mechanism through which waste is naturally treated. Microorganisms break down organic waste and pollutants, leading to natural purification of water and soil without human intervention.