I would be glad if you all help me

If a text made the claim that act iv was the most important act in the entire play, what evidence could you find to prove the accuracy of that claim? list one piece of evidence from the text to support that claim.

The tankers are so large how did some crew members get from one point to another while on board

Hamlet is often called a tragic hero who is torn between thought and action. why does he not kill claudius when he sees him in act iii, scene iii? why does he kill polonius in act iii, scene iv? how do these two actions affect your understanding of hamlet as a man of thought or a man of action? your answer should be at least 250 words.