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what is porosity?
Porosity is a measure of the void spaces in a material, and is a fraction of the volume of voids over the total volume, between 0–1, or as a percentage between 0–100%.
Expert answered|cyssuss|Points 845|
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Asked 5/27/2010 10:27:32 AM
Updated 11/21/2014 11:46:25 PM
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Flagged by Kaysha [11/21/2014 2:49:44 PM], Unflagged by Kaysha [11/21/2014 2:50:01 PM], Edited by Kaysha [11/21/2014 2:50:12 PM], Edited by jeifunk [11/21/2014 11:46:24 PM], Confirmed by jeifunk [11/21/2014 11:46:25 PM]
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What is the principle of uniformitarianism?
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Updated 11/17/2015 1:20:05 AM
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Uniformitarianism is the principle or assumption that the same natural laws and processes that operate in the universe now have always operated in the universe in the past and apply everywhere in the universe.
Added 11/17/2015 1:20:05 AM
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What is half-life?
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Updated 2/20/2016 12:17:24 AM
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In science, a half-life is the amount of time it takes for half of a substance or entity to undergo some specified process.

Added 2/20/2016 12:17:24 AM
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the world
Weegy: What is your question about the world? User: what are the "specific" major events in the geologic time scale? Weegy: You will find the information at the following link (More)
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Expert Answered
Updated 85 days ago|12/2/2023 12:48:07 AM
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The major events in the geologic time scale include the formation of Earth, the development of life, mass extinctions, and the evolution of various geological eras, such as the Paleozoic, Mesozoic, and Cenozoic.

Added 85 days ago|12/2/2023 12:48:07 AM
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what do pangea, laurasia, and gonwanaland have in common?
Weegy: That they all used to be in a whole island. (More)
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Updated 85 days ago|12/2/2023 12:49:28 AM
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Pangaea, Laurasia, and Gondwana were ancient supercontinents that existed during different geological periods, with Pangaea being the most recent and comprising Laurasia in the northern hemisphere and Gondwana in the southern hemisphere.

Added 85 days ago|12/2/2023 12:49:28 AM
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What are the types of animals in a subarctic climate?
Weegy: domestic livestock and/or wild animals, (More)
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Updated 8/7/2014 9:47:31 AM
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Animals in a subarctic climate have to be well-adapted to the cold, with extra layers of fat and thick fur. Some of the world's largest hunters live within the Arctic Circle: bears and wolves, and smaller ones such as wolverines, red and arctic foxes, and lynxes. They hunt herd animals such as caribou, moose, elk, reindeer, musk oxen, mountain goats, Dall sheep and deer. There are no reptiles - whose ectothermic metabolism means they cannot adapt to the cold - but there are a host of small mammals: snowshoe hares, beavers, river otters, mice, rats, lemmings, voles and squirrels.
Added 8/7/2014 9:46:45 AM
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