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.
Answer:desserts
Explanation:Vast deserts border the Nile to the east and west.
I believe the answer is: <span>approximately half of eligible voters are likely to vote.
The political participation in united states is considered to be pretty low (only 55% of eligible voters use their rights)
From those 55%, the vast majority of them are people who are 40 years old or older, so we can say that American political representatives do not fully represent every segment of united states population</span>