A. the use of a drug for nonmedical reasons
Answer:
B. ultraviolet radiation that can cause cancer
Explanation:
Sun does not supply oxygen nor energy. In fact, it is rather harmful with the exception of providing vitamin D.
Answer:
D - retrieve sticks and balls
Explanation:
operant conditioning is the use of reinforcement or punishment to get the desired behavior. If you reward your dog with a treat every time it retrieves a ball or stick - it will come to associate the retrieval behavior with a positive reward.
The healthiest way to eat a salad, is to eat it plain without any dressings or croutons....
Answer: One example could be spending time with friends. This improves your social health, as you are positively interacting with others and can improve your mental and emotional health as you can talk after problems and friends help you feel better.
Another example could be exercising. Exercising improves your physical health by getting active. It also improves your mental and emotional health because it releases hormones that make you feel happier and more energized.
Hope this helps you :)