The anti-war movement gained momentum in the 1960s.

I need to exfoliate my skin before applying makeup.

Microorganisms are too small to be seen with the naked eye.

The new technology revolutionized the industry.

I am a non-smoker.

The value of pi is a constant.

I saw a bird perched on top of the pole.

The prehistoric era was a time before written records.

The navy deployed a sub to search for the missing submarine.

He is doing a super job.