<h2>Operational </h2>
Explanation:
The operational definition is the description of a specific process, or set of validation tests, accessible to more persons than the definer (i.e., said to be publicly accessible), where it can be repeatedly measured or tested
Operational definitions are also used to define system states or (nonspecific) physical objects by the description of a specific process of preparation which can be repeated
For example in the given example experimenter is using the case of hitting a punching bag to measure the level of aggression in someone
The answer is A because they need the sunlight to go through the water
Sycamore trees (Platanus occidentalis) make handsome shade trees for large landscapes.
It is called coevolution, when two species influence each other's speciation.
