The PRIMARY cause of the rapid economic development of Saudi Arabia since the 1960s is: Group of answer choices

machinery imports

petroleum exports

commercial shipping

industrial chemical production

Petroleum exports

Explanation:

Saudi Arabia's oil exports are a major economic branch. Almost all economic income in the country (about 90%) is based on oil exports. Oil in Saudi Arabia was discovered in 1932, and since then, it has become a major economic factor in the country. Before the discovery of oil, Saudi Arabia was a poor country. The main activities were livestock and agriculture. Before discovering oil, Saudi Arabia based its economy on religious tourism, which still plays an important role in the country's economy.

competition i thin

yes, since there is a positive and a negetive if the positive and negitive wasn't there wouldn't a flow electricity in it.