How often do girls get there period

Aperson who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. this condition is known as  a.  osteoporosis.    b.  crohn's disease.    c.  celiac disease.    d.  hemophilia.

In some states the highway patrol use plane carrying radar device5s to monitor traffic as the plane flies over traffic the radar device can tell the officers how fast each car is moving at the moment in time the radar device determines the cars

During weight training, when should you exhale? (hope) a. on the lift b. on the recovery c. before the set d. after the set