Argon makes up 0.93 % of the atmosphere. In a given sample of air, the partial pressure of argon is 6.54 mmHg. what is the pressure of the sample?

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.