In one or two sentences, describe why decisions are based on expected costs and benefits.

the direction of the magnetic field produced by an electric current will change when the direction of the electric current changes. for example : if a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).

i cant see the page but i am assuming as a innocent child who got tricked by an children eating old lady

a myth tells a story about the origins of places or people, from the word "mythos" defined as story of the people. therefore, these two myths describe the genealogy   of the culture. the maori of new zealand based their myths in the universal creation of creatures and nature, the background of all polynesian beliefs. the raven and the first men from the queen charlotte islands (canada) also depicts the creation of men and nature by supernatural or superior power.