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.
D.Mutation causing uncontrolled cell division
Explanation:
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A. chemical precipitation of minerals from seawater
A possible consequence of deforestation in the carbon cycle is increased atmospheric carbon (Option D).
<h3>What is the carbon cycle?</h3>
The carbon cycle refers to the movement of this element (carbon) between biotic and abiotic factors.
Carbon is a harmful greenhouse gas present in the atmosphere which is associated with climate change.
In conclusion, a possible consequence of deforestation in the carbon cycle is increased atmospheric carbon (Option D).
Learn more on the carbon cycle here:
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Answer:
<h2>B</h2>
Explanation:
Glycolysis is the process of production of pyruvate from glucose by various enzymatic steps.
This pyruvate is further used in different ways; as it is differently used in the presence of oxygen or in the absence of oxygen.
In the absence of oxygen, lactate is generated form pyruvate, as given here, if this enzyme is non-functional, then lactate would not be produced.
In the presence of oxygen, pyruvate is oxidized in TCA cycle and finally through electron transport chain, energy in generated.
