The purpose and effect of the 13th amendment was to

The overall purpose was to free the slaves, and prohibit slavery so the south couldn't go back to it, and industrialize. This was one of the Amendments added during reconstruction along with the 14th and 15th amendment.

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.

it provided for equal trade rights among nations in china.