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.

It takes twenty minutes to get to my house.

There is a test in two days.

There are two rooms in my house.

There are two rooms in my house.