The only answer is; no one knows.
The earth may last until the sun dies, which will not be for about 5 billion years. Or it may get hit by a giant asteroid next year. No one can say for definate. Anyone claiming to be able to foresee this is trying to con or scam you in some way.
The US has around 250 years of coal reserves left at current consumption rates, but this can vary based on factors like demand, production, and technological advancements.
It is estimated that there are about 5.6 trillion pounds of known copper reserves left in the world. However, the total amount of copper resources, which includes undiscovered deposits and unconventional sources, is much higher. The exact amount of copper left in the world will depend on future discoveries and advancements in mining technology.
After 10740 years, half of the sample would have decayed, so there would be 200 atoms left. If the original sample had 400 atoms, then there would be 200 atoms left in the sample after 10740 years.
It is difficult to provide an exact number of years of iron ore left due to various factors such as demand, technological advancements, and exploration. However, it is estimated that the current known reserves of iron ore can supply global demand for several decades. Ongoing exploration and new technologies may also uncover additional reserves in the future.
Fossil fuels regenerate very slowly. When we talk about renewables we are discussing items that renew very fast. While we have several hundreds of years of oil left, (most in the United States) we can not regenerate this oil for many many years.
a thousand
There was 700 polar bears left in our world 50 years ago.
There are about 150-250 Vaquitas in the world. save them!
5,000 pikas left in the world
It is not true, and if you think that do you really want the world to end? It is going to hurt you more than it hurts the world
He has two years left.
There are 110 left in the world
No, because they existed 230 million years ago in the Mesozoic era.
As long as we discover new sicknesses there will be medicines.
Only 500 giraffe's are left in the world.
2 million terrorist are left in this world
About 10,000 are left.