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The process in which nitrogen is converted into a usable form for life is called _______. a. nitrogen fixation b. photosynthesis c. greenhouse effect d. photolysis
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Asked 9/10/2014 8:19:10 PM
Updated 9/20/2014 2:45:15 PM
1 Answer/Comment
Edited by Janet17 [9/20/2014 2:45:15 PM]
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User: What is the ultimate source of energy for the Earth? a. photosynthesis b. respiration c. the sun d. nutrient cycles

User: The process in which nitrogen is converted into a usable form for life is called _______. a. nitrogen fixation b. photosynthesis c. greenhouse effect d. photolysis

Weegy: The process in which nitrogen is converted into a usable form for life is called: nitrogen fixation.
angelrampel|Points 213|

User: The carbon cycle involves an exchange of carbon between _______. a. the geosphere and atmosphere b. the atmosphere and hydrosphere c. the geosphere and hydrosphere d. the geosphere, hydrosphere, and atmosphere

Question
Asked 9/10/2014 8:19:10 PM
Updated 9/20/2014 2:45:15 PM
1 Answer/Comment
Edited by Janet17 [9/20/2014 2:45:15 PM]
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The carbon cycle involves an exchange of carbon between: the geosphere, hydrosphere, and atmosphere.

Added 9/13/2014 3:03:48 PM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [9/20/2014 2:44:13 PM]
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Ecologists use tools such as binoculars and microscopes to ____________ (observe/model) changes in the environment
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Updated 9/14/2014 5:53:45 AM
1 Answer/Comment
Ecologists use tools such as binoculars and microscopes to observe changes in the environment.
Added 9/14/2014 5:53:45 AM
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Confirmed by jeifunk [9/14/2014 6:14:32 AM]
What and where is the biosphere
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Updated 9/20/2014 2:41:18 PM
2 Answers/Comments
The biosphere is the global sum of all ecosystems.
Added 9/14/2014 5:58:22 AM
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Confirmed by jeifunk [9/14/2014 6:14:17 AM]
The biosphere is the area of the Earth inhabited by life. The extremes of this layer range from heights of up to ten kilometres above sea level, used by some birds in flight, to depths of the ocean such as the Puerto Rico trench, at more than 8 kilometres deep.
Added 9/20/2014 2:41:18 PM
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How is an ecosystem different from a community
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Updated 9/14/2014 6:00:43 AM
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Ecosystems are dynamic entities composed of the biological community.
Added 9/14/2014 6:00:43 AM
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a group of ecosystems that have the same climate and similar dominant communities
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Updated 9/14/2014 6:04:59 AM
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A biome is a group of ecosystems that have the same climate and similar dominant communities.
Added 9/14/2014 6:04:59 AM
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Confirmed by jeifunk [9/14/2014 6:14:01 AM]
TRUE OR FALSE An ecologist who is studying the relationships among the dominant communities in a geographical region is studying a biome.
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Updated 9/13/2014 2:32:14 PM
1 Answer/Comment
An ecologist who is studying the relationships among the dominant communities in a geographical region is studying a biome.-This is TRUE.

Added 9/13/2014 2:32:14 PM
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Confirmed by yumdrea [9/13/2014 2:34:17 PM]
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