Which was a major cause for the entry of the united states into works war 1?

a. germany decision to resume unrestricted submarine warfare.

b. the desire to collect reparations.

c. germany's invasion of belgium.

d. russia's decision to leave the war.

what are local authorities doing to fix the problem

explanation:

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.

because of the war the westeners befriended japan and each other advance.