Which two events proved that Middle Eastern nations could threaten the world’s oil supply? 1.the closing of the Suez Canal by Egypt in 1956
2.the OPEC oil embargo in 1973
3.the discovery of an oil reserve in Iran in 1911
4.the founding of the first commercial oil rig in Poland in 1853
5.the discovery of an oil reserve in Iraq in 1914

1 the closing of the suez canal by egypt in 1956 and 2 the opec oil embargo in 1973

Explanation:

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explanation:

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”