Answer: Gestalt psychology.
Originator of gestalt psychology is Fritz Perls.
<span>The storage areas are called : Reservoirs
Reservoirs can both be made by nature or crafted by men.
In order to make our lives became easier , we could create our own reservioir by digging up an open land to form a space that could contain water when its raining, as a back up resources when the lake or rivers are drying up</span>
People gather during sports fest or any activities that relate to sports. These are the opportunities that different people from different places are able to showcase their physical abilities and strengths. How this effectively build the nation and promote diversity is that, it encourages unity. Unity in a way any people in different places come together to witness such event. This is a great chance for promotions and awareness events.