the world cup ( I think) happens every 3 years or 4 years?
Tri-annual.
Every century means every 100 years
An event that occurs once every three years.
I assume you mean every four years and yes it is held every four years
The word Biennial means Every two years
I think they take place every 3 years..... I'm not sure, srry
every 3 years
every 3 months
Annually mean every year.
3 years
Green turtles - 6 clutches of 115 eggs every 4-6 years Loggerhead turtles 4 clutches of 120 eggs every 3-5 years Leatherback turtles - up to 10 clutches of 100 eggs every 3-5 years Olive ridley & Kemps ridley 2-3 clutches of ~90 eggs every 2 years Hawksbill turtles 4 clutches of 120 eggs ever 3-5 years Flatback turtles 3 clutches of 50 eggs every 1 to 2 years
For example, something that happened in 1400, 1600 and 1800 happened every two hundred years.
No they happen every two years