Alcohol is a. a drug b. an anti depressant c. a hallucinogen d. all of the above

Option A, drug

Explanation:

Alcohol is a drug that comes under the category of depressant. It is neither an anti depressant nor hallucinogen.

Being a depressant , consumption of alcohol causes slowing down of bodily functions. The effects of alcohol consumption depends on the amount of alcohol being consumed. When small quantity of alcohol is ingested it acts as a stimulant, but when it is ingested in large quantity it can produce severe effects of depressant such as pain, toxicity, & unconsciousness.

Hence, only option A is correct.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

b a mature ovary of a plant.