Question: Also, if State and Federal excise taxes remain at the current levels, tax revenues will decrease over time because of decreased sales.
State and Federal excise taxes have been at this level for less than a year.

Answer: it is not possible to tell

Question: Although C-R functions are available to estimate health effects of exposure to nitrogen oxides
Exposure to nitrogen oxides cause no health effects.

Answer: no

Question: Your guide will turn off the engine and an eerie silence will envelop the boat.
The guide owns the boat in which we are riding in.

Answer:
it is not possible to tell