Marine pollution is a global issue, and all countries should cooperate to find a solution.

We should seriously address the issue of water pollution.

Genetic contamination may have serious impacts on biodiversity in the natural world.

This area is affected by multiple contamination.

This area is off-limits due to radioactive contamination.

We should recycle to prevent environmental pollution.

Thermal pollution can potentially have serious effects on marine life.

This area is affected by background pollution.

Reducing greenhouse gas emissions is important for environmental protection.

He is good at solving trigonometry problems.