What is the consequence of a fuel spill?

A fuel spill primarily leads to environmental contamination, which can have significant and detrimental effects on the local ecosystem. The spilled fuel can seep into soil and groundwater, harming plants, animals, and aquatic life, and may create hazardous conditions for human health. Contamination can lead to long-term ecological damage, requiring extensive cleanup efforts and potentially resulting in legal consequences for the responsible party.

The other options do not represent the realities of a fuel spill. Increased fuel efficiency and improved tank integrity are not outcomes of a spill; in fact, a spill usually indicates a failure of equipment or improper handling. Baseline testing is a proactive measure used to establish initial environmental conditions before any fuel storage activities, but it does not relate directly to the consequences of an actual spill.