Which action contributed to the Southern belief that their economy was threatened? The founding of the Republican party
The finalization of the Missouri Compromise
The support of popular sovereignty in territories
The approval of protective tariffs on manufactured goods

The approval of protective tariffs on manufactured goods contributed to the belief that their economy was threatened. Option D is correct.

The people in the south believed that their economy was threatened because, there was an approval of tariffs on goods.

They already had water bodies that they could use to transport their goods, They were then opposed to paying tariffs on roads and canals because they felt that they gave them no benefits.

They wanted a situation where even though they paid these tariffs they would derive some economic benefits too.

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it is not option D

Explanation:

I did the assignment and did not get any points for the question

popular sovereignty   influenced the declaration of independence because the colonists wanted to have freedom to do they wanted so they put into writing

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.