Question

what does ethyl alcohol do?
increases brain and spinal cord activity
increases the rate of digestion
slows down brain and spinal cord activity
slows down the rate of digestion

Explanation:

Ethyl alcohol is a depressant. Depressants slow down the central nervous system (which includes the brain and spinal cord). It does not increase brain/spinal cord activity (eliminating the first option). Regarding digestion, while alcohol can have some effects on the digestive system (like irritating the lining), its main and well - known effect related to the options given is on the central nervous system. It is not primarily known for increasing or decreasing the rate of digestion in the context of these simple, general options.

Answer:

slows down brain and spinal cord activity