Help

I believe it’s despair.

Explanation:

I believe it’s despair because the actual meaning of euphoria is happiness or excitement.

i don't think it's a good idea to threaten anyone at all.

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.