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Score: The main means through which humans obtain nitrogen from the atmosphere is _____. lightning animals plants bacteria
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Asked 9/21/2012 7:18:19 AM
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User: Score: The main means through which humans obtain nitrogen from the atmosphere is _____. lightning animals plants bacteria

Weegy: Just like humans and other animals, plants ... of soil bacteria are capable of removing nitrogen from the atmosphere and ... [ hydrogen they obtain from water molecules through ... ]


User: If a twenty cubic foot area of ground has four cubic feet of water contained in it, it has _____ porosity. 5% 10% 20% 40%

Weegy: If a twenty cubic foot area of ground has four cubic feet of water contained in it, it has 80% porosity.


User: Score: Air masses normally form at a source region where clear skies and little wind occur, and they cover large areas of such a region. This is most reflective of which of the following? a low pressure area a high pressure area a low altitude area a high altitude area

Weegy: ... source of lift is wind circulation forcing air over a physical barrier such as ... they form in the low or lower-middle altitude ... [ form along the front. High pressure area ... ]


User: Score: Striations of rocks found at high altitudes are most likely caused by _____. deposition abrasion moraines compression

Weegy: Striations of rocks found at high altitudes are most likely caused by abrasion.
Expert answered|jeifunk|Points 6723|



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Asked 9/21/2012 7:18:19 AM
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