National Certified Addiction Counselor, Level I (NCAC I) Practice Exam

What is the typical potency range of marijuana THC content?

1. 0.1% to 1%

2. 0.5% to 11%

3. 5% to 15%

4. 20% to 30%

The correct answer is: 0.5% to 11%

The answer indicating a THC content typical potency range of 0.5% to 11% reflects the historical averages of marijuana potency, which were more commonly found in older cannabis strains prior to the widespread breeding for higher THC concentration. In the past, many strains of marijuana exhibited THC levels within this range, making it representative of what was typically available. While cannabis cultivation has advanced significantly, leading to the development of strains with much higher THC levels, the selected range encapsulates the lower end of the potency spectrum that was more prevalent before more recent advancements in selective breeding and cultivation techniques aimed at increasing THC content. For reference, the ranges presented in the other options represent higher levels of potency which have become more common in modern strains due to changing cultivation practices and selective breeding. However, they do not accurately reflect the general historical context of common marijuana potency before these recent advancements.