Question and answer
10.   _______ says the universe began as a point and expanded.      *A. *Cosmology *B. *Hubble's law *C. *The Big Bang theory *D. *Evolution
Question
Asked 2/25/2015 12:14:21 PM
Updated 2/11/2018 8:40:16 AM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Edited by Janet17 [2/11/2018 8:39:55 AM], Confirmed by Janet17 [2/11/2018 8:40:16 AM]
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User: 10.   _______ says the universe began as a point and expanded.      *A. *Cosmology *B. *Hubble's law *C. *The Big Bang theory *D. *Evolution

Weegy: THE BIG BANG THEORY says the universe began as a point and expanded.


User: 11.   The photosphere is the innermost layer of the Sun, and it's also the      *A. *invisible surface of the Sun. *B. *nickname for the outer atmosphere of Earth. *C. *visible surface of the Sun. *D. *atmospheric pressure of Jupiter.  

Weegy: The photosphere is the innermost layer of the Sun, and it's also the visible surface of the Sun.
rugmaker|Points 3544|

User: 12.   Which variable stars have pulsation periods between 1.5 hours and 1.2 days?      *A. *Nebulas *B. *Cepheid variables *C. *RR Lyrae variables *D. *Protostars

Weegy: The stars that have pulsation periods between 1.5 hours and 1.2 days are RR Lyrae variables. "Their period is shorter, typically less than one day, sometimes ranging down to seven hours."
biank1989|Points 238|

User: 13.   The dark, smooth surface areas of the Moon are known as      *A. *maria. *B. *highlands. *C. *rilles. *D. *craters.

Weegy: The dark, smooth surface areas of the Moon are known as: MARIA.
Andrew.|Points 49320|

User: 14.   Edwin Hubble categorized galaxies according to their      *A. *food supplies. *B. *colors. *C. *shapes. *D. *inhabitants.

Weegy: Edwin Hubble categorized galaxies according to their: SHAPES.


User: 15.   The cloud of interstellar dust and gas that forms a star is known as a      *A. *protostar. *B. *red giant. *C. *nebula. *D. *white dwarf.

Weegy: The cloud of interstellar dust and gas that forms a star is known as a: NEBULA.


User: 16.   An explosion that destroys the outer portion of a star is known as a      *A. *protostar. *B. *supergiant. *C. *supernova. *D. *nebula.

Question
Asked 2/25/2015 12:14:21 PM
Updated 2/11/2018 8:40:16 AM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Edited by Janet17 [2/11/2018 8:39:55 AM], Confirmed by Janet17 [2/11/2018 8:40:16 AM]
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An explosion that destroys the outer portion of a star is known as a supernova.
Added 2/11/2018 3:04:04 AM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [2/11/2018 8:40:18 AM], Rated good by Janet17
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Questions asked by the same visitor
7.   Sound waves "can't" travel through      *A. *a liquid. *B. *an elastic material. *C. *a solid. *D. *a vacuum.  
Question
Not Answered
Updated 2/23/2015 12:23:06 PM
1 Answer/Comment
Sound waves "can't" travel through: VACUUM.
Added 2/23/2015 12:23:06 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [2/23/2015 12:24:34 PM]
14.   The _______ of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time.      *A. *amplitude *B. *compression *C. *intensity *D. *frequency
Question
Not Answered
Updated 2/23/2015 1:24:13 PM
1 Answer/Comment
The INTENSITY of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time.
Added 2/23/2015 1:24:13 PM
This answer has been confirmed as correct and helpful.
5.   Which one of the following environments will sound "not" travel through?      *A. *Gas *B. *Vacuum *C. *Liquid *D. *Solid  
Question
Not Answered
Updated 4/22/2015 3:22:38 AM
1 Answer/Comment
Sound will "not" travel through a vacuum.
Added 4/22/2015 3:22:38 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [4/22/2015 3:31:09 AM]
2.   The entire region of Northern Africa and Southwest Asia has a climate generally described as *A. *Dry *B. *Cooler by water *C. *Snowfall does not occur *D. *Hot all day and night
Question
Not Answered
Updated 2/25/2015 5:57:19 AM
1 Answer/Comment

The entire region of Northern Africa and Southwest Asia has a climate generally described as dry.
Added 2/25/2015 5:57:19 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [2/25/2015 6:07:07 AM]
15.   Compared to yellow light, orange light has      *A. *a longer wavelength. *B. *the same frequency. *C. *a different polarization. *D. *a faster wave velocity.
Weegy: Compared to yellow light, orange light has: LONGER WAVELENGTH. User: 18.   The term "angle of deviation" is used in reference to      *A. *a lens. *B. *a prism. *C. *an analyzer. *D. *a polarizer. (More)
Question
Not Answered
Updated 2/26/2015 2:25:27 PM
1 Answer/Comment
The term "angle of deviation" is used in reference to a prism.
Added 2/26/2015 2:25:27 PM
This answer has been confirmed as correct and helpful.
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