Concept:Pollution is the introduction of harmful substances or materials into the environment, causing damage to the ecosystem.
Explanation:The question asks for the term that describes the introduction of materials having negative impacts on the ecosystem.
Pollution is defined as making land, water, and air dirty and unsafe for human and animal use.
Examples include industrial waste, smoke, sewage, and plastic materials discharged into the environment.
Combustion refers to the process of burning substances.
Transpiration is the loss of water vapour from plant leaves.
Evaporation is the change of liquid water into water vapour due to heat.
None of these three options involves the introduction of harmful materials into the ecosystem.
Therefore, pollution is the correct answer.
Answer:D. Pollution