He broke the glass carelessly.

His carelessness caused the accident.

This issue requires attention.

The air in this area is greatly affected by pollutants emitted from factories.

We exist as a part of the material world.

The existence of dark matter has not yet been fully proven.

Antibiotics don't work for colds, so please don't take them unnecessarily.

It is said that antimatter has properties opposite to those of matter.

This food may contain carcinogens.

Electromagnetic radiation conveys energy in forms such as light and radio waves.