Answer:
It will show a cause-and-effect relationship between two properties of elements.
Explanation:
Comparative investigation to study the properties of elements is the better approach to take by the student rather than descriptive investigation. This is because, by using the comparative investigation, he or she would be able to list clearly the benefits and effects of each element thereby bringing a distinction to each of them when viewed by another individual.
On the other-hand, descriptive investigation is difficult because, most of the elements might have similar descriptions but different effects.
