Am i going insane??? I don't know, but people say that i should call the sui cide help line

Which term defines one's age as measured by how well the body is working? chronological age biological age social age mental age

Heat affects all vitamins. which vitamins are more sensitive to heat and leach into water? a. vitamin a and d b. vitamin b and c c. vitamin e and k d. vitamin d and c

Which of the following methods had the highest risk of transmitting hiv? a) oral sex b) sharing needles c) sweat d) preseminal fluid