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Meteorites and the Composition of Earth

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Why are meteorites a possible source of information regarding the origin and composition of Earth? Also, what other "clues" might be present in meteorites?

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Please see response attached, which is also presented below. I hope this helps and take care.

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Let's take a closer look at this interesting question.

1. Why are meteorites a possible source of information regarding the origin and composition of Earth? . Also, what other "clues" might be present in meteorites?

From spectral analyses of the sun and comparison with meteorites, we can estimate the abundance of elements in the solar system. We can then infer the original composition of the solar system from the sun and meteorites and we can fill in gaps in our knowledge of Earth's composition. The date of the origin of the Earth can also be estimated from meteorites, which is discussed in more detail below.

There are three main types of Meteorites: stony, iron, and stony-iron. The stony meteorites (chondrites) are the most common, iron meteorites are composed largely of iron and nickel, and carbonaceous chondrites are of particular interest ...

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This solution explains why meteorites are a possible source of information regarding the origin and composition of Earth. It also explains other "clues" might be present in meteorites.

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A comparison of the science of Earth as compared with the other planets in our solar system.

A comparison of the science of Earth as compared with the other planets in our solar system.

a. Much is known about planet Earth, as it is our home planet. It is therefore an ideal planet for comparative planetology. Briefly describe the properties of our planet and explain them. Include the qualities of the earth's interior, and how we learn about it, as well as a description of properties that shape and change the earth's surface (i.e. impact cratering, volcanism, tectonics, erosion).

b. Then, examine each planet in our solar system. How does it compare to Earth? What are its unique characteristics? Why do these features exist on that planet, as opposed to Earth?

you can use popular astronomy magazines and reputable Web sites. Jet Propulsion Laboratory (JPL) and National Aeronautics and Space Administration (NASA) Web sites (http://www.jpl.nasa.gov/ and http://www.nasa.gov/), will assist you in finding the latest information on planets.

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