I need help with the usage of this software.

Turn the valve to control the flow of liquid.

The dense vegetation in the rainforest provides a habitat for a wide variety of animals.

The velocity of the car was incredible.

I need to expand my vocabulary.

Wheat is a staple crop in many countries.

Radioactivity is the process whereby unstable atomic nuclei release energetic subatomic particles.

In antiquity, humans managed to survive without electricity.

The computer stores data in binary format.

I enjoy playing chess with my friends on the weekends.