A star is formed within the clouds of dust. These clouds of dust are scattered throughout the galaxy. These dust clouds are called as nebula. The turbulence inside the dust clouds rise to form knots. These knots along with sufficient mass causes gas and dust to collapse with the help of gravitational force. These sequence of steps leads to form a star.
Answer:
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17%
Explanation:
Demand. With less than 5% of the world's population, the U.S. consumes almost 17% of the world's energy and accounts for 15% of world GDP.
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Conditioning is the type of behavior involved when the bell
rings at the end of class. Conditioning is a behavioral process in which a
given stimulus or signal (such as a bell) becomes more frequent and effective
in causing the manifestation of a desired response in a given environment.
Answer:Mitochondria
Explanation:it breaks down the glucose and release energy in the form of ATP adenosine tri phosphate
