Milankovitch cycles are natural climate cycles that occur over long periods of time.

Metonic cycles occur every 19 years and are used to synchronize the solar and lunar calendars.

There are many four-cycles in the bicycle race.

Hydrolic cycles are used in various industries for power transmission.

The news cycles are constantly changing.

Solar cycles affect the Earth's climate.

The company has implemented efficient operating cycles to maximize productivity.

The ovarian cycles regulate the reproductive system in females.

Business cycles are a natural part of the economy.

The Calvin cycles are essential for photosynthesis.