I would say Frequency is how often you perform an activity, and Intensity is how hard/intensely you perform the activity.
<span>- proteins: 1 gram of protein provides 4 kcal or 17 kJ,
- carbohydrates: 1 gram of carbohydrate brings 4 kcal or 17 kJ,
<span>- lipids: 1 gram of lipid brings 9 kcal or 37 kJ,</span></span>
That is going to be C) adolescence because when one is an infant they don't know much and they are just learning, as a kid in our childhood. Kids just don't pay attention and want to do whatever. We would already know life skills as an adult so it is adolescence
