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A substance that enters Earth's cycles and does harm to living things is A. oxygen. B. freshwater. C. a pollutant. D. hydrogen.
A substance that enters Earth's cycles and does harm to living things is a pollutant.
Expert answered|migzptz|Points 7617|
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Asked 7/18/2013 1:09:47 PM
Updated 183 days ago|2/28/2016 11:21:54 AM
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This conversation has been confirmed as correct, not copied, and helpful.
Edited by yumdrea [2/28/2016 11:21:51 AM], Confirmed by yumdrea [2/28/2016 11:21:54 AM]
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The greenhouse effect is related to the phenomenon of an increase in average surface temperature known as A. conservation. B. agricultural improvement. C. air pollution. D. global warming.
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Updated 47 days ago|7/13/2016 11:49:56 AM
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The greenhouse effect is related to the phenomenon of an increase in average surface temperature known as GLOBAL WARMING.

Added 47 days ago|7/13/2016 11:49:56 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by yumdrea [7/13/2016 11:54:34 AM], Rated good by yumdrea
The four giant gas planets that are made primarily of lightweight elements are A. Earth, Saturn, Neptune, and Venus. B. Jupiter, Saturn, Uranus, and Neptune. C. Venus, Saturn, Uranus, and Neptune. D. Mercury, Venus, Earth, and Neptune.
Weegy: Jupiter, Saturn, Uranus and Neptune are a known as GAS GIANTS. User: The passing of the Moon directly between Earth and the Sun is a/an A. meteor shower. B. solar eclipse. C. solar shower. D. elliptical ocular illusion. User: The four terrestrial planets that have solid, rocky surfaces are A. Mercury, Venus, Jupiter, and Mars. B. Mercury, Jupiter, Saturn, and Mars. C. Mercury, Venus, Earth, and Mars. D. Mars, Venus, Earth, and Jupiter. User: Large groups of galaxy clusters that appear in sheetlike and threadlike shapes are known as A. local clusters. B. large clusters. C. Milky Way center. D. superclusters. Weegy: C. superclusters Galaxy groups and clusters are the largest known gravitationally bound objects to have arisen thus far in the process of cosmic structure formation. They form the densest part of the large-scale structure of the Universe. [ In models for the gravitational formation of structure with cold dark matter, the smallest structures collapse first and eventually build the largest structures, clusters of galaxies. Clusters are then formed relatively recently between 10 billion years ago and now. Groups and clusters may contain ten to thousands of individual galaxies. The clusters themselves are often associated with larger, non-gravitationally bound, groups called superclusters. ] User: Edwin Hubble categorized galaxies according to their A. food supplies. B. inhabitants. C. colors. D. shapes. Weegy: Edwin Hubble categorized galaxies according to their D. shapes. (More)
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Asked 7/18/2013 1:17:45 PM
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When two stars are bound together gravitationally and orbit a common mass, they're known as A. galaxies. B. binary stars. C. meteoroids. D. constellations.
Weegy: When two stars are bound together gravitationally and orbit a common mass, they're known as D. binary stars. User: When electromagnetic radiation is arranged to wavelength and frequency, it forms the A. multiple-spectrum vividness. B. electromagnetic spectrum. C. multiple-vivid spectrum. D. ecliptic plane. Weegy: When electromagnetic radiation is arranged to wavelength and frequency, it forms the: B. electromagnetic spectrum. (More)
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Asked 7/18/2013 1:27:22 PM
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An explosion that destroys the outer portion of a star is known as a A. supergiant. B. protostar. C. nebula. D. supernova.
Weegy: An explosion that destroys the outer portion of a star is known as a: D. SUPERNOVA. User: An explosion that destroys the outer portion of a star is known as a A. supergiant. B. protostar. C. nebula. D. supernova. Weegy: An explosion that destroys the outer portion of a star is known as a: D. SUPERNOVA. (More)
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Asked 7/18/2013 1:24:36 PM
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With a diameter that's 11 times larger than Earth's, _______ is the largest planet. A. Saturn B. Venus C. Jupiter D. Mars
Weegy: With a diameter that's 11 times larger than Earth's, JUPITER is the largest planet. (More)
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Updated 7/18/2013 1:29:13 PM
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With a diameter that's 11 times larger than Earth's, Jupiter is the largest planet.
Added 7/18/2013 1:29:13 PM
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