Question

nicotine produces pleasing effects in your brain, leaving you feeling good for (fill in the blank)__________. approximately 5 minutes. no time at all. a long period of time. a short period of time.

Explanation:

Nicotine acts quickly in the brain but its effects are short - lived. It is not instantaneous (so not "no time at all") and not long - lasting (so not "a long period of time"). While "approximately 5 minutes" is too specific. Generally, nicotine's pleasurable effects are for a short period of time.

Answer:

a short period of time.