B) Brain...spinal cord, for some reason I keep ending up on questions you've asked.
Answer:
Frequency: refers to how often you exercise.
Intensity: refers to the intensity of exercise undertaken.
Time: refers to the time you spend exercising
Explanation:
give credit to the other person :)
Answer:
it causes lungs to blacken and rot and over time you will slowly die and breathing get worse
Explanation:
