Which principle of exercise is concerned with maintaining a challenging workout?

What is the best approach to selecting safety equipment for an activity

Why is a lunch consisting of pizza, fruit, and salad a better choice than a lunch with the same number of calories from pizza alone? a)both lunches provide the same amount of energy but the lunch of pizza, salad, and fruit provides more nutrients. b)both lunches provide the same amount of nutrients but the lunch of pizza, salad, and fruit provides more energy. c)both lunches are healthful but the lunch of pizza, salad, and fruit provides more energy for metabolism. d)both lunches are healthful but the lunch of pizza, salad, and fruit is likely to have a higher fat content.

*psych* 1. discuss the major categories of abnormal behaviors as classified by the diagnostic and statistical manual (dsm) 2. identify the characteristics of the major categories of abnormal behavior.