Dystopia, or a Dystopian society is society where there's great injustice and suffering.
Usually this term is used in order to describe a totalitarian or a post-apocalyptic society in one word.
In a dystopia there's usually a single ruler which is very cruel, brutal, egoistic, and has complete control over everything.
The people live in poverty and suffering, often being tortured and made to do things that they don't want to.
This type of society can easily be said that is one of the worst possible scenarios that can happen to a society, or the whole humanity.
Answer:
D) 13.62 kg/L
Explanation:
This problem can be solved by a simple rule of three.
The problem states that Mercury has a dansy of 30 lbs/L, and asks what is the density in kg/L. We have to convert from lbs to kg.
Each lb has 0.454 kg? How many kg are there in 30 lbs?
So:
1 lb - 0.454kg
30 lb - x kg


This means that mercury's density in kg/L is 13.62, letter D. Letter A is also 13.62, however it is not in the unit asked.