Answer:
human activities
air pollution
not managing the wastes properly
the most serious flaw of this design is: <span>They have not defined happiness or how it will be measured.
Happiness is very subjective because it each person may have a different source of happiness. For some people, it maybe the success of their career while for the other it's simply doing what they love to do. Not only that, if Magali and Jane collect the data simply by asking like that, they would not know whether the person is telling the truth.</span>
<span>his idea is best described as a(n) Theory
In a theory, even though the conveyed idea(s) are based on general <em>facts&principles</em> that already proven before, they're still in an abstract form. There is no experiments or research that conducted to support these ideas in any way. </span>
Interest Rates= Government policy can influence interest rates
Higher rates=also lead to decreased consumer spending
Lower interest rates=attract investment as businesses increase production
