Why is oil such an important natural recorce in the middle east

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However, oil has made the region strategically important for the world's superpowers in the 20th century, whereas the significance of the Middle East today had increased even more because oil is the major fossil fuel along with natural gas and the Middle East is one of the major suppliers of oil in the international

Explanation:

I'm not sure but hope it helps.

It's one of the major source of income.

explanation:

may i ask what challenges?

  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.