Sometimes, people who observe others in need do not them because
a. they don't know what to do.
b. they think someone else will .
c. they don't think it's an emergency.
d. all of these

"people are the greatest resource that a country has". justify.

Why are the majority of the world's economies mixed? what may happen to the "pure" types of economies (traditional, socialist/command, market capitalist) when they incorporate elements from other economic models?

Describe how a person can have both high and low self-esteem.