Abner has been smoking marijuana regularly for 30 years when he participated in a study comparing cognitive performance between smokers and nonsmokers. after 28 days of abstinence from marijuana, he took the same tests given to nonsmokers. what effect did abstinence have on abner’s cognitive abilities?

The effect of abstinence on Abner’s cognitive abilities was that his Cognitive ability was equal to that of nonsmokers.

Explanation:

Cognitive abilities are defined as the skills based on brain which is used to carry out tasks ranging from simplest to most complicated.

The cognitive ability concerned with the ability to observe, learn and problem-solving ability based on observation and learning rather than actual knowledge on that subject. The cognitive abilities can be improved with the improvement in lifestyle and proper practice.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.

answer; the sons of liberty;