You’ll hear words from the bulletin about air pollution and a fire.

A bulletin is a short news report or announcement.

You’ll hear words from the bulletin about air pollution and a fire.

Air pollution is harmful dirt or chemicals in the air.

For example: The storm caused severe damage to the roof.

Damage is harm that makes something less useful or in worse condition.

Here, it means very small pieces of matter in the air.

Matter is the material that things are made of.

For example: Dust particles floated in the sunlight.

Here, floated means stayed in the air and moved gently.

For example: The cause of the leak is under investigation.

A leak is a hole or fault that lets liquid or gas escape.