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What is half-life?
In science, a half-life is the amount of time it takes for half of a substance or entity to undergo some specified process.
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Asked 6/1/2010 8:27:25 AM
Updated 2/20/2016 12:17:24 AM
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Edited by yumdrea [2/20/2016 12:17:04 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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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 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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what is a water table?
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Updated 11/3/2014 4:42:59 AM
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The water table is the surface where the water pressure head is equal to the atmospheric pressure (where gauge pressure = 0).
Added 11/3/2014 4:42:59 AM
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Confirmed by selymi [11/3/2014 4:57:14 AM]
What is a convection current?
Weegy: Convection current is the the transfer of heat by the mass movement of heated particles into an area of cooler fluid. (More)
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Updated 3/16/2015 1:07:15 PM
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