18. Cannabis use can lower verbal contribution. True False

## Step 1The problem presents a statement about the effects of cannabis use on verbal contribution. The statement is that cannabis use can lower verbal contribution.## Step 2To solve this problem, we need to understand the effects of cannabis on the brain. Research has shown that cannabis can have a negative impact on cognitive abilities, including verbal contribution.## Step 3Based on the research, it is reasonable to conclude that the statement is true.