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Some of the oldest rocks ever found have been estimated to be about 3.5 billion years old. Is it likely that these rocks were present when Earth was first formed?
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∙ 7y ago
No, rock material is constantly recycled on Earth as rock is melted into magma.
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∙ 7y ago
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What is the youngest planet in our solar system?
There is not believed to be a youngest or an oldest planet. They most likely formed simultaneously.
How many years are in Jupiter?
Jupiter was formed at the same time as the rest of the solar system, from a large spinning disk of gas and dust. Astronomers think that all this happened about 4.6 billion years ago! So Jupiter is about 4.6 billion years old.Astronomers believe the Sun formed about five billion years ago. Most of the other bodies in the solar system formed shortly thereafter (within 100-150 million years), though Jupiter was likely the first of these to form, which is why it is the largest.Rocks on Earth have been dated to nearly 4.9 billion years, so it is likely Jupiter is only slightly older (perhaps 50 million years older), though, of course, the exact age of both is not known for certain.
Which feature is most likely to have been formed by flowing water?
Canyons are formed by flowing water.
How old is the Earth based on scientific evidence?
Most scientists agree that the Earth and our entire solar system is about 4.5 billion years old. To the extent that there are disagreements as to the age of the Earth, the disagreements are in the decimal places. Some argue for 4.5 billion; some claim 4.6 or 4.7 billion years is more likely.
What volcanic process most likely formed Earth's atmosphere?
Outgassing
Some of the oldest rocks ever found have been estimated to be about 3.9 billion years old Is it likely that these rocks were present when Earth was first formed?
No. The fact that some of the oldest Earth rocks are over 4 billion years old indicates that Earth was in a molten state for around 300 million years. The first rocks would have formed on Earth from this molten material.
What are the astronomical bodies from oldest to youngest?
The oldest astronomical bodies are likely the stars in the universe, which formed around 13.8 billion years ago. Next are galaxies, which began forming shortly after the Big Bang. Planets, moons, asteroids, and other smaller bodies in our Solar System are relatively younger, with Earth estimated to be around 4.5 billion years old.
What is the youngest planet in our solar system?
There is not believed to be a youngest or an oldest planet. They most likely formed simultaneously.
What is the projected global population for 2030?
The world population is the total number of living humans on Earth. As of today, it is estimated to number 7.089 billion by the United States Census Bureau. According to current projections, the global population will reach eight billion by 2030, and will likely reach around nine billion by 2050.
When was the first mountain form?
Our planet was formed about four and a half billion years ago, and it is likely that there were mountains from the beginning. The messy process of planetary formation itself, involving the accretion of mass from various smaller bodies, is not likely to produce a perfectly spherical surface.
What can you tell about an igneous rock that has a coarse texture?
It is most likely formed underground.
How long have earthquakes been around?
The earth's crust is first thought to have formed around 100 million years after the initial formation of the earth. As such it is likely that there have been earthquakes occurring for approximately 4.4 billion years.
Do aliens possibly exist?
Yes. There are estimated to be at least 100 billion planets in our galaxy alone, some of which seem to be similar to Earth. Given those numbers it seems pretty likely that life would have emerged on planets or moons aside from Earth.
What are scientific ideas about the origins of the world?
Our earth/moon system coalesced from a disk of material orbiting our sun, coming to near its present size some 4.6 billion years ago. The moon itself most likely formed when a mars sized body struck the nascent earth. The debris form that impact would have formed our moon, orbiting much closer than it now does, within just a few thousand years. There are two major periods of impact events recorded on the lunar surface, one about 4.5 billion years ago, and the second about 3.8 billion years ago. There have been other impacts before and since, just not so many or so pronounced.
Is hydroelectricity likely to run out?
Yes, in a few billion years.
Which fraction would be most likely estimated as 0?
2/9
Which fraction would be most likely estimated as 1?
How about 9/10
