2007-07-31 06:26:31 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Never, because as they get scarcer, they will get more expensive, so usage will decrease. It's called the law of supply and demand.
2007-07-31 06:31:55 · answer #1 · answered by Renaissance Man 5 · 0⤊ 0⤋
Never.
As certain things become more scarce, the price goes up so people use less. As the price gets super-high then people use only tiny bits so it lasts longer and longer.
Everything has feedback loops. It's just a scare tactic that some people use to say that some morning we're going to wake up and there won't be any gas at the gas station or iron in the ground.
2007-07-31 06:39:38 · answer #2 · answered by mikeburns55 5 · 0⤊ 0⤋
well actually, the earths natural resources cant run out because the are produced naturally and there is so many natural resources not found in this world yet
2007-07-31 08:37:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋
well, it depends which ones. We are running out of fossil fuels and supply of helium gas, some minerals are already very rare. Supply of clean water is at its limit already in most areas of the earth. Each will run out at a different time.
2007-07-31 06:31:03 · answer #4 · answered by billgoats79 5 · 0⤊ 0⤋
confident we are able to sometime run out of a few organic materials, this is why we could desire to constantly shield the ambience and use much less materials so interior the destiny, even tho we nonetheless use them, we are able to a minimum of be responsive to that we did no longer used up all the materials
2016-12-11 06:04:35 · answer #5 · answered by ? 4 · 0⤊ 0⤋
they're not. as certain resources become scarce (and therefore more expensive), we will move to other less expensive alternatives. simple economics - as others have pointed out.
2007-07-31 06:50:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋
When we use them up. That's why we need to preserve!
You look hot.
2007-07-31 08:00:25 · answer #7 · answered by Anonymous · 0⤊ 0⤋