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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 129 days ago|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 129 days ago|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 129 days ago|8/20/2014 7:52:00 AM
This answer has been confirmed as correct, not copied, and helpful.
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