One key to the use of exercise in aiding good sleep is that
a. muscles contain sleep-inducing hormones
b. it is easier to sleep when one is tired
c. delta brain waves are generated by exercise
d. only cardiovascular activities aid sleep

When diving into water, it is important to look before diving to avoid that could damage your nervous system deep water underwater hazards living creatures water toys

James is sitting at his desk on the ground floor of an office building when the entire room starts shaking. which action is most appropriate in this situation? a. standing near a window b.running out of the building c.holding up a bookshelf d.preparing for aftershocks

True or false? the usa has one of the safest food supplies in the world