Answer:
A system of government in which powers are shared between two levels of government is known as a Federal system.
Answer:
basically what is something that you as a customer buying something is important and how does that product help contribute to the public in a good way
Explanation:
for example you could use something like electric cars, investing in a buisness, or buying food and giving to homeless things like that
Answer:
Hand washing has external health benefits, helping prevent the spread of communicable diseases. If a program were somehow devised so that people received a small reward every time they washed their hands, we would expect the frequency of hand washing to increase.
Explanation: People who are given something (A reward of some sort) are proven to do something more, (in this case washing their hands more), or better then they would do without a source of motivation.