What is a significant impact in the context of EIA?

• A. A change in environmental patterns and processes due to project activities that is distinct from an undisturbed situation.
• B. A minor change in aesthetics.
• C. A short-term noise increase.
• D. A strictly legal violation.

Answer: (A)

In EIA, a significant impact is a change in environmental patterns and processes caused by project activities that is distinct from the undisturbed situation. This means the project leads to a noticeable difference in how the environment behaves or evolves compared with its natural, baseline state. The significance depends on how large the change is, how long it lasts, how much area it affects, whether it can be reversed, and how sensitive the environment is. So, this option captures the idea of a real, deviation-from-baseline effect on the environment, not just minor aesthetics, a brief noise spike, or a legal issue.