Seems pretty good, I don't see a problem with your answers.
Well,if you don't follow instructions you might make a mistake and mess up what you were supposed to do.Its making a cake,if you don't follow the instructions you could make the cake wrong and it would either not taste as good or it wouldn't come out like it should've.
It is saying to give the definition of the word ambiguous, if that didnt help then you need to ask more clearer.
Answer:
Trekking poles are a common hiking accessory used to assist walkers with their rhythm and provide stability on rough terrain.