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The universe is huge, and the earth is like a speck of dust in the universe. So there must be 1 billion tons of resources around the earthThere may be more than 1 billion tons. However, it is not easy to get resources from space, and it requires advanced human technology.
With the speed of human science and technology, the resources we can exploit in the future will be limited to the solar system. In fact, the solar system is very rich in resources, we know that the solar system has two asteroid belts, one is the asteroid belt between Jupiter and Mars, and the number of asteroids here is probably not less than 1 billion. Another small belt is the Kuiper Belt at the edge of the solar system, a huge annular belt around the solar system with an incalculable number of asteroids.
Therefore, the solar system is not short of resources, but limited by human technology, we will not be able to mine asteroids in the Kuiper Belt for a long time, and we can only mine near-Earth asteroids in the early stage. Scientists have discovered 15,000 near-Earth asteroids, and scientists estimate that the number may exceed 1 million, and the total resource may reach 42 trillion tons.
At the moment, human spacecraft are still weak, and only major breakthroughs have been made in terms of energy. The spacecraft can easily enter space without the need for a rocket booster, so it is possible to mine asteroids. Mining asteroids and dragging them to Earth for mining is unrealistic.
Not only is this risky, but it's also costly. The right mining model is in space. Larger asteroids can land directly, then mine on the asteroid and finally transport the finished product back to Earth via a spacecraft.
So you don't have to worry about resources, but don't waste them either.
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Without resources, not only can human science and technology not be able to develop, but human civilization may also face its ultimate fate. Therefore, the discovery of inexhaustible resources is a major problem that humanity must solve. There are countless planets and countless resources in the vast universe.
This is the real exploitation of human resources. However, getting resources from space is not an easy task. It requires human-developed technology.
With the development of human science and technology, the resources we can use in the future are limited to the solar system.
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There are many planets around the earth, and it is possible that there are 1 billion tons of resources.
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One billion is a small number compared to the entire mass of the Earth. It's not more than a billion at all.
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There are no resources in space, so there are not so many resources around the Earth.
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There must be this, because the universe is so big, there must be a lot of resources.
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The solar system is very rich in resources. We know that there are two asteroid belts in the solar system, one is the asteroid belt between Jupiter and Mars. The number of asteroids here is probably no less than a billion.
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This country in the world is still being explored, but it is not impossible that the universe is so big and there are so many resources.
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The vastness of the universe is not something that we can explain as simply as we can, and it requires in-depth research.
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It should be, because there is a lot of space material floating on the surface of the earth.
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There may be, because the whole universe is very large, so there will be 1 billion tons of resources.
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Due to overexploitation, many resources have been depleted. Although, other resources can be found instead, but the resources will eventually be exhausted. So, we don't have many resources at our disposal.
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Any kind of material is a resource. The earth's resources will never be "depleted".
I see what you mean. For example, how many years will oil be used, and how many years will copper be mined. Our textbooks have been emphasizing these dry numbers, just to remind us all to cherish resources.
However, even if the minerals are actually mined in the future, it will only be the "high-grade" minerals. This was followed by an increase in resources, and as a result, the original "low-grade" minerals became profitable. Imagine if the iron ore had been mined, we would even be able to make iron from the red soil (as long as the iron was high enough).
Coal has been mined, and perhaps we have completely replaced fossil fuels with renewable energy.
In short, our resources are actually "unlimited" and can be met as long as we need them. It is not necessary and impossible for humans to obtain resources from outer space.
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A1. The world's total oil reserves are pessimistically estimated at 270 billion tons and optimistically estimated at 650 billion tons. Another 700 billion tonnes are in the oil sands and oil shale. However, about 175 billion tonnes can be recovered economically.
According to pessimistic estimates, the recovery volume is at least about 100 billion tons. The world's annual oil consumption is estimated to be 3 billion tons, which can be used for about 130 years. However, only 87.9 billion tonnes of recoverable oil reserves have been identified worldwide.
If 3 billion tons are mined every year, it will be available in less than 30 years.
2. Natural gas reserves are about 180 billion tons to 400 billion tons. The recoverable reserves of natural gas in the world are more than 7 billion cubic meters. There is a perception that the world's total recoverable natural gas reserves of 28.1 billion cubic meters will only meet the demand for 170 years.
The proven reserves of coal are 1,400 billion tons. Based on the world's coal consumption, it can be used for 500 years. There is also an estimate that the world's coal reserves are 10 trillion tons, but only about 700 billion tons can be extracted.
Based on the annual mining volume of 3.4 billion tons, it can only last for 200 years.
3. The mineral resource reserves of uranium that can be used as nuclear fuel are 4 million tons. The Western world alone has confirmed 2.09 million tons. Even with rapid advances in nuclear technology, this reserve will not be exhausted until long after fast breeder reactors have rapidly produced more nuclear fuel than they consume.
4. The theoretical reserves of the world's hydropower resources are 3.8 billion kilowatts, of which 110,000 kilowatt-hours can be developed.
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No, the global temperature trend is warming, and it is unlikely that it will freeze again for a long time.
I believe that there will be, it is impossible that there is life on the earth in any vast universe! The Earth is just one planet in the solar system, and the solar system is one of thousands of galaxies in the Milky Way, which in turn is one of millions of galaxies in the universe, so there should be other life in one galaxy in the universe!!
No way, during the Cold War, the United States and the Soviet Union each had 6,000 nuclear warheads, and the scope of the nuclear bomb attack was not large, Hiroshima and Nagasaki were both very small cities, and these more than 10,000 nuclear bombs may not necessarily cover a country, let alone the world.