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Write a note on indirect sources of information of interior of earth

Answer» Analysis of properties of matter indirectly provides information about the interior:\tMeteors: A\xa0meteor, known colloquially as a\xa0shooting star\xa0or\xa0falling star, is the visible passage of a glowing meteoroid, micrometeoroid, comet\xa0or asteroid through Earth\'s atmosphere, after being heated to incandescence by collisions with air molecules in the upper atmosphere, creating a streak of light via its rapid motion and sometimes also by shedding glowing material in its wake. Although a meteor may seem to be a few thousand feet from the Earth, meteors typically occur in the mesosphere at\xa0altitudes from 76 to 100\xa0km (250,000 to 330,000\xa0ft).\xa0The root word\xa0meteor\xa0comes from the Greek\xa0meteōros, meaning "high in the air".\tGravitation:\xa0is a natural phenomenon by which all things with mass or energy including planets, stars, galaxies, and even light are brought toward one another. On Earth,\xa0gravity gives weight to physical objects\xa0and the Moon\'s\xa0gravity.\xa0causes the ocean tides.\xa0The gravitational attraction of the original gaseous matter present in the Universe\xa0caused it to begin coalescing, forming stars -\xa0and for the stars to group together into galaxies\xa0- so gravity is responsible for many of the large-scale structures in the Universe. Gravity has an infinite range, although its effects become increasingly weaker on farther objects.\tMagnetic field:\xa0\xa0AIt also provides information on\xa0magnetic materials in the crustal portion, and thus, provides information about the distribution of materials in this part.


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