Geography, 21.04.2020 01:48 jtphillips02
In science, astronomers must analyze many observations and separate out those that provide evidence in support a specific theory. To reinforce the credibility of a theory, astronomers must look for multiple, independent pieces of evidence. Consider the following example: Astronomers believe that every bright galaxy harbors a supermassive black hole at its center. Sort the following observations according to whether they support or do not support this theory. Fast motions of closely orbiting material in galactic nuclei, Powerful jets of high-speed material, Exceptionally bright galactic nuclei. Stellar black holes in interacting binary systems, Globular clusters in the outer galactic haloes, Spiral arms in the outer disks of galaxies.
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Geography, 22.06.2019 22:40
[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat
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Geography, 23.06.2019 00:30
In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d
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Geography, 23.06.2019 04:10
Which feature of a map shows the relationship between a distance on a map and that distance on earth? key scale grid system compass rose
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Geography, 23.06.2019 15:00
Many areas surrounding the caspian sea contain important a. rare minerals b. forestry resources c. gold and silver mines d. oil and natural gas fields
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In science, astronomers must analyze many observations and separate out those that provide evidence...
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