<span>Most emotion researchers agree that the basic emotions are </span>universal and they are biologically determined in human being which is the products of evolution.<span>
There are six basic emotions which are biologically present and they are fear, surprise, anger, disgust, happiness, and sadness. At times these take various further shapes and can be found in complex forms as well.</span>
Answer: Experimental
Explanation:
An experimental research would be needed to prove if the hypothesis that "the presence of certain odors causes people to gamble more" is correct or not.
An experiment is a process carried out in a scientific method to prove if a hypothesis is correct or not.
