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0
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What layer of soil, essential for farming, has the highest proportion of organic material?
answered
Jan 7
in
Science
0
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85
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What is the term for geological activity that occurs within a plate?
answered
Jan 7
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Science
0
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69
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What does interspecific competition between species often lead to?
answered
Jan 6
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Science
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46
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What are made of long chains consisting almost solely of carbon and hydrogen?
answered
Jan 3
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Science
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86
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What are external skeletons known as?
answered
Jan 2
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Science
0
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82
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Solar and wind are still expensive compared to what?
answered
Dec 31, 2024
in
Science
0
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104
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Planting a row of trees around a field or erecting a fence on a sand dune helps prevent what form of erosion?
answered
Dec 31, 2024
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Science
0
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42
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Many ionic compounds occur as hydrates, compounds that contain specific ratios of loosely bound water molecules, called waters of hydration. waters of hydration can often be removed simply by doing this?
answered
Dec 31, 2024
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Science
0
votes
41
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Ice ages, continental drift, and giant meteorites striking earth have caused what phenomenon?
answered
Dec 30, 2024
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Science
0
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124
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Gaseous nitrogen is converted into forms that can be used by plants during a process called what?
answered
Dec 30, 2024
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Science
0
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64
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Deletions remove one or more what from the dna?
answered
Dec 30, 2024
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Science
0
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78
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What is an organic compound that is made up of only carbon and hydrogen?
answered
Dec 28, 2024
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Science
0
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65
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What works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities?
answered
Dec 27, 2024
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Science
0
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49
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The chemical used by the ants to weed their garden turns out to be what kind?
answered
Dec 27, 2024
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Science
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51
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Narrowing of the arterioles causes an increase of what upstream in the arteries?
answered
Dec 27, 2024
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Science
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