What is the proximity and availability of food, water, and shelter to each other called?

The proximity and availability of food, water, and shelter is also known as access to Primary Needs. These needs are considered as such because they are necessary for a human being to be able to live. Whenever any of these 3 needs is compromised, a person will absolutely postpone any pursue other needs in order to fulfill this one.

It is a major task for a government to assure the access to primary needs for its people. In the fulfillment of this task, entities find difficulties such as geographical, cultural, and economic challenges.