My friend contracted Q fever.

His enthusiastic cry livened up the entire venue.

The thermosphere is a part of the Earth's atmosphere, located above the stratosphere and the mesosphere.

He lives on a tropical island.

The photoelectric effect is a phenomenon where a material emits electrons after absorbing light.

We need to evaluate the cost-effectiveness of this project.

We need to evaluate the cost-effectiveness of this project.

Reducing greenhouse gas emissions is important for environmental protection.

He is suffering from combat stress reaction.

This computer is using the latest technology.