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Q: A protostar forms once the nebular cloud condenses and the core begins _____.
A: A protostar forms once the nebular cloud condenses and the core begins to heat
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User: A protostar forms once the nebular cloud condenses and the core begins _____.

Weegy: A protostar forms once the nebular cloud condenses and the core begins to heat
vandar|Points 911|

User: What are steps of stellar evolution in the correct order.

Weegy: 1. [ A nebula, an immense cloud of hydrogen gas and dust, condenses into smaller regions of matter. On occasion, one of these regions collapses under the force of its own gravitational attraction, often triggered by an outside force, like a nearby supernova-an explosion of a star. After the collapse of a cloud, atoms begin gravitating together to form a condensed center. The condensed center is a protostar. As gravity pulls in more gas and dust, pressure builds, causing the protostar core to heat up. Clouds and matter begin to rotate around the protostar and flatten due to their rotation. They surround the protostar like a rotating disk. The protostar continues to grow and its core continues to heat. When the core is hot enough, nuclear fusion begins. The start of nuclear fusion is technically the beginning of a star's life. Eventually, when the nuclear energy runs out, the star dies. Depending on the size and mass of the star, it can go through many stages and die in different ways-one of those ways being a supernova. ]
jher000|Points 7039|

User: Observations of the solar system support the nebular theory because _____.

User: Which statement is true? Inner and outer planet composition supports the nebular theory because heavier elements condense close to the Sun, and lighter elements condense at cooler temperatures. The big bang is a theory about the origin of the solar system. Nuclear fusion occurs at cooler temperatures, away from the Sun. The inner planets are gas giants, and the outer planets are rocky.

Weegy: because heavier elements condense close to the Sun, and lighter elements condense at cooler temperatures please clear yuour questions
mjane25|Points 746|

User: Current observations of a new star forming support the nebular theory because they show a disk-shaped plane surrounding the star, which may eventually form

User: Current observations of a new star forming support the nebular theory because they show a disk-shaped plane surrounding the star, which may eventually form ____.

User: Current observations of a new star forming support the nebular theory because they show a disk-shaped plane surrounding the star, which may eventually form a _____. A. Protosun B. Protostar C. protoplanets D. Protonebula

Weegy: The answer is B.Potostar.
Expert answered|manaweegy|Points 419|

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Asked 3/29/2012 1:24:09 AM
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