What are Depressants (downers) made of? (For health class)

Agirl is working really hard in high school and decides to finish some of her classes early , what classes should she choose?

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

Apatient receives 250 ml mg of oil drug at noon 6 p.m. and midnight the drug has a half life of 6 hours how much does a drug remain in the patient at 6 a.m. the next day