Question and answer
What are sudden large declines in biodiversity in the fossil record called? A. mass evolution B. mass decline C. mass increase D. mass extinction
Question
Asked 2/27/2013 5:14:45 AM
Updated 7/22/2014 11:13:55 AM
1 Answer/Comment
Edited by Janet17 [7/22/2014 11:12:50 AM]
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Original conversation
User: What are sudden large declines in biodiversity in the fossil record called? A. mass evolution B. mass decline C. mass increase D. mass extinction

Weegy: Sudden large declines in biodiversity in the fossil record are called: mass extinctions.
aaaaaaaaaaaaaaa|Points 3996|

User: What does biodiversity mean? A. the variety of ecosystems B. the variety of life in an ecosystem C. the variety of landforms D. the variety of humans

Weegy: Biodiversity means: the variety of life in an ecosystem.
sujaysen|Points 3780|

User: Which is not affected by acid rain? A. plants B. animals C. fossil fuels D. lakes

User: How many times in the history of Earth has the number of species dropped drastically? A. 4 times B. 3 times C. 5 times D. 6 times

Weegy: 5 is the number of times in the history of the Earth that the number of species dropped drastically.
sharpies|Points 8787|

User: Why would there be a concern if we lost our rain forest? A. rain forest is beautiful B. rain forests contain a large amount of biodiversity C. rain forest produces a lot of rain D. rain forest produces a large amount of food resource

Weegy: There be a concern if we lost our rain forest because: rain forests contain a large amount of biodiversity. [smile]
Expert answered|Mayang30|Points 705|

Question
Asked 2/27/2013 5:14:45 AM
Updated 7/22/2014 11:13:55 AM
1 Answer/Comment
Edited by Janet17 [7/22/2014 11:12:50 AM]
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Fossil fuels are not affected by acid rain.
Added 7/22/2014 11:13:55 AM
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What was the 'Headright system'?
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1 Answer/Comment
Headright system is a system of obtaining land in colonial times in which one received fifty acres of land for every emigrant to America one sponsored.
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The term haline refers to salt.
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(LC)The Kansas-Nebraska Act concerned which issue? a the right of Northerners to own slaves b the sale of federal lands to slave owners c the expansion of slavery into new territories d the return of slaves who had escaped from the South
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1 Answer/Comment
The Kansas-Nebraska Act concerned the expansion of slavery into new territories.
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When a solid changes into a liquid or a liquid into a gas it is called a __________ change. A. mass B. phase C. volume D. density
Weegy: When a solid changes into a liquid or a liquid into a gas it is called a PHASE. (More)
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The United States Postal Service is an example of A. the Presidential Cabinet Department. B. an Office of Administration. C. the Executive Office of the President. D. an independent agency of the Executive Branch.
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Updated 10/16/2015 3:17:54 AM
1 Answer/Comment
The United States Postal Service is an example of: an independent agency of the Executive Branch.
Added 10/16/2015 3:17:36 AM
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