Osteoporosis is a disease that affects the bones and leads to an increase in bone fractures. osteoporosis is most likely to be affected by which cycle?
a. water
b. phosphorus
c. nitrogen
d. magnesium

In a search a driver needs to look in a of distances far away to near, as well as to the left, right and rear of the vehicle, making efficient use of both central and fringe vision. a) fast manner b) systematic manner c) slow manner d) aggressive