When lifting weights, you should breathe in when your muscle is?
Contracting or Relaxing

If birth rates fall below the replacement level, then a country is in which stage of demographic transition? a. urbanization/industrialization b. mature industrial c. postindustrial d. pre-modern

Aperson has had a good _ of life if they are still at the age of 95.

Which form of birth control good people use without altering hormonal systems are blocking sperm from fertilizing an egg