The table gives the percentage of pregnancies for four groups of women. Each group used a different method of birth control. Which method of birth control was the most effective?
- Abarrier
- Bchemical
- Cnatural
- Dsurgical
Biology 0610 · IGCSE · Sexual reproduction in humans
The table gives the percentage of pregnancies for four groups of women. Each group used a different method of birth control. Which method of birth control was the most effective?