Which of the following is not true about the use of lsd? a. its use increased slightly in the 1990s. b. its effects are almost always pleasurable. c. emotional effects may include impaired attention and memory. d. physical effects may include nausea, dizziness, and tremors.

It’s obvious the asnwer is false

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.

17.73 . . . .. .