Question

how long can the iud (intrauterine device) work to prevent pregnancy?
1 year
until it is removed
5 years
3 - 10 years

Explanation:

Intrauterine devices (IUDs) can vary in their lifespan. Copper - IUDs can last 10 - 12 years and hormonal IUDs can last 3 - 7 years. In general, they work effectively until they are removed.

Answer:

Until it is removed