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Many scientists agree that the universe is about how many years old
Universe is estimated between 13-16 billion years old. The most accepted answer is approximately 13.73 billion. Earth is roughly 5 billion years old, the consensus on this is slightly less, around 4.5 to 4.6 billion.
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User: The Doppler effect suggests that sound waves are relative to the observer. You know if an object is coming or going from the sound it makes. Light waves follow the Doppler effect also. However, instead of sound changing, you know if an object is coming or going

User: Many scientists agree that the universe is about how many years old

Weegy: Universe is estimated between 13-16 billion years old. The most accepted answer is approximately 13.73 billion. Earth is roughly 5 billion years old, the consensus on this is slightly less, around 4.5 to 4.6 billion.
sharpies|Points 7068|

User: A scientist who studies earthquakes is a





Weegy: Seismologists are scientists who study earthquakes.
Expert answered|andrewpallarca|Points 9584|



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Asked 3/16/2012 8:32:03 AM
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Evidence of the endosymbiotic theory was found in the _____. nucleus and cytoplasm mitochondria and endoplasmic reticulum mitochondria and chloroplasts nucleus and chloroplasts User: Which of the following statements is true? Water is the energy source for plant photosynthesis. Chlorophyll is contained in organelles called mitochondria. A by-product of photosynthesis is carbon dioxide. Roots have tiny root hairs that maximize the plant's ability to absorb water.
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Updated 8/20/2014 7:52:01 AM
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Roots have tiny root hairs that maximize the plant's ability to absorb water. This is TRUE.
Added 8/20/2014 7:48:27 AM
This answer has been confirmed as correct, not copied, and helpful.
Evidence of the endosymbiotic theory was found in the mitochondria and chloroplasts.
Added 8/20/2014 7:52:00 AM
This answer has been confirmed as correct, not copied, and helpful.
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Weegy: The Nebular Hypothesis is the theory that suggests that the interstellar dust within a nebular cloud is the most important component of planet formation. User: The nebularcondensationaccretiondisk theory suggests that protoplanets began to form around the protosun from many collisions and combinations of gas and matter, called nebularcondensationaccretiondisk. Weegy: It is the nebular theory. User: When a star's nuclear energy runs out, it dies. A star can die in many ways. A _____ is one way a star might die, and it can trigger the beginning of a new star's life cycle. Weegy: Please post the choices. Thanks! User: When a star's nuclear energy runs out, it dies. A star can die in many ways. A _____ is one way a star might die, and it can trigger the beginning of a new star's life cycle. red giant white dwarf black dwarf supernova Weegy: blackhole (More)
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