Please helppp, it is part of a graded review, and I have the charges, I just have no clue what the mass is

Which form of relativism states that people rely on their own standards of right and wrong when making a decision?

Identify a specific example for each type of technology

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.