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Brezhnev doctrine
Weegy: The Brezhnev Doctrine was a Soviet Union foreign policy, first and most clearly outlined by S. [ Kovalev in a September 26, 1968 Pravda article, entitled "Sovereignty and the International Obligations of Socialist Countries." Leonid Brezhnev reiterated it in a speech at the Fifth Congress of the Polish United Workers' Party on November 13, 1968, which stated: When forces that are hostile to socialism try to turn the development of ... (More)
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Asked 11/28/2012 10:06:40 PM
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A hole in the ozone layer can allow damaging__________ to reach the earth.
Question
Education|No Subcategories|
Updated 11/29/2012 12:16:10 AM
1 Answer/Comment
The Hole in ozone layers allow UV radiation to pass through.

Explanation :
Ozone layer in upper atomosphere (stratosphere to be precise) act as a protective layer against solar radiation reaching Earth. One of the most dangerous radiation is UV which can cause Skin Cancer on prolonged exposure to it and imune supression.

UV Radiation has 3 types UV-A, UV-B and UV-C.

UV-C = harmful to all living beings
UV-B = Causes Skine irritation and Cancer on prolonged exposure
UV-A = least harmful

Added 11/29/2012 12:16:10 AM
Jets, high speed trains, highways and the increase of automobile ownership means that people travel more __________. a. easily c. cautiously b. quickly d. a and b
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Updated 11/29/2012 2:43:24 AM
3 Answers/Comments
[Deleted]
Added 11/29/2012 2:03:33 AM
Jets, high speed trains, highways and the increase of automobile ownership means that people travel more (d. a and b) easily and quickly.
Added 11/29/2012 2:04:00 AM
Answer d: a and b = easliy and quickly
Added 11/29/2012 2:43:24 AM
Cloning is based on copying DNA. true or false
Weegy: Cloning: The process of making a clone, a genetically identical copy. [ Cloning can refer to the technique of producing a genetically identical copy of an organism by replacing the nucleus of an unfertilized ovum with the nucleus of a body cell from the organism. The first adult mammal cloned was Dolly the Sheep in 1997. ] (More)
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Updated 342 days ago|5/12/2013 7:52:00 AM
1 Answer/Comment
Cloning is based on copying DNA.
Answer is TRUE
Added 342 days ago|5/12/2013 7:52:05 AM
The world’s first space satellite was called_________? User: The Challenger was the first space shuttle. true or false
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Updated 11/29/2012 2:10:45 AM
2 Answers/Comments
The Challenger was the first space shuttle. This statement is FALSE because Space Shuttle Challenger (NASA Orbiter Vehicle Designation: OV-099) was NASA's second Space Shuttle orbiter to be put into service, Columbia having been the first.
Added 11/29/2012 2:08:24 AM
Sputnik 1 was the first artificial Earth satellite.
Added 11/29/2012 2:10:45 AM
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