When comparing the productivity of an employee with the hours that the employee works, the conclusion is that "there is " between these variables.

no correlation

Explanation:

Correlation: In statistics or research methods, the term "correlation" is described as a kind of association between two different variables. In other words, it refers to a measure of the degree to which two distinct variables are being related to each other. However, in any correlational study or research there's a possibility of getting three possible outcomes including a negative correlation, no correlation, and a positive correlation.

In any study, a zero correlation tends to exist when there's no relationship found between two different variables.

In the question above, the given statement signifies no correlation.

radiant energy is a form of kinetic energy only.(a)

answer; biological;