How does alcohol comsumption affect reaction time

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?

Tanya is not able to solve a problem because she’s unable to see it from a fresh perspective. which obstacle to problem solving is tanya experiencing? a. fixation b. counterproductive heuristic c. confirmation bias d. overconfidence

Waste is deposited into in thin layers which are then compacted and covered with soil.