Which of these is a source for particulate matter in the air?
a.
automobiles
b.
dust
c.
fires
d.
all of the above

select the best answer from the choices provided.

a
b
c
d

Which stage of stress includes the fight or flight response?

Does anyone have an answer to this question? if so me.

Asap during the past few weeks or months, have you noticed any exercises that have become too easy for you? do you think you need to increase the intensity in any of the three exercise areas in your workouts? evaluate your exercise progress in the three exercise areas (cardiovascular, resistance, and flexibility) and list what modifications, if any, you may need to make in your exercise routine.