I believe the answer is: scarcity and opportunity costs
A concert tend to happen on unpredicatble time, which make it considered to be scarce among fans. When we are forced to choose between going to concert or study, we would be forced to weigh the opportunity cost that arise when we sacrifice a certain option to pursue another, and choose the activity that give us the most benefit.
The statement above is FALSE. Supply and demand for all goods and services is not constant and does change every time when there is a change in market. There are many factors affecting the change of supply and demand, it depends on the availability of both also with regards to the production if the materials needed for the supply is available.
Answer:
A tropical climate can be described as regions of the Earth where the mean temperature remains greater that 18 degrees Celsius during all the twelve months of the year
Explanation:
Answer:
the usually would lobby through non profit groups or through advertising