Explanation:
1. Wasting means low weight for height.
2. If we talk about undernutrition, then it is stunting. In stunting, there is an impaired growth that refers to low height for age.
3. Underweight simply means low weight for age
Using the following terms are the best way to compare them.
1. wasting = low weight for height
2. stunting = low height for age
3. underweight = low weight for age
as a Nurse, we were using these terms in our documentations. Therefore, my answers are based on experienced.