If we divide Earth's current proven oil reserves by current annual consumption of about 26 billion barrels, we see that we have about years of oil supply remaining, at present rates of consumption. If we divide Earth's current proven oil reserves by current annual consumption of about 26 billion barrels, we see that we have about years of oil supply remaining, at present rates of consumption. 15 130 50 30 80

50 years.

Explanation:

By dividing the earth's current proven oil reserves by current annual consumption of about 26 billion barrels, places such as the Venezuela and the Saudi Arabia and Canada and Iran account for about the 20%, 18% and 13% and 9% of the earth oil reserves or resources and as the geology is divided on to the proven development and the undeveloped resource. The north of the arctic circle has about the 90 billion undiscovered barrels and has 44 billion of the natural gas in the liquid forms in a predefined national region and about 50% i.e 95 million barrels of the remain at the present rates of the utilization.

Answer decreased soil salinity;

The correct answer is a)  a resource with a limited supply; it will run out.