Why was the united nations formed?
to promote communism
to engage in armed conflict
to defend nations against attack
to promote international peace

The correct answer is: "to promote international peace"

The United Nations is an intergovermental organization which was founded in 1945, in the aftermath of WWII, with the main aim of fostering coorperation among nations and joint action, and for the development of agreements and friendly relationships among countries that would give rise to an international and stable peace and security,  instead of the former climate of confrontations, military conflicts and wars.

the nets, boats and fishing poles are examples of determinants for catching fish. if a fisherman has a quality fishing net and fishing poles plus a high end fishing boat, then there is a big opportunity or possibility that he may catch more fish.

moreover, fish production is directly proportional to its determinants such as boat, net, fishing poles and bait. therefore, a good equipment is a determinant while fisherman’s effort is an input to his fishing skills and the output is the production made out of catching fish.