Answer:
1- a case-control study
Explanation:
A case–control study is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.
Answer: a globe
Explanation: because its the biggest map in the world
Answer:
A good workout option for health class would be cardio or yoga.
Explanation:
Pelvic inflammatory disease is the most likely cause in 99% of studies on this matter