Nuclear fusion<span> is the process of combining two lighter nuclei into a single heavy nucleus (part of an atom). This process is also called a nuclear reaction and it releases a large amount of energy. <span>In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing of hydrogen atoms to form helium, but larger stars can produce elements as heavy as iron. </span></span>
evolution is fundamentally unpredictable.the theory of evolution as it is used here refers to "macroevolution'a theory is meant to both explain and predict;the theory of evolution only explains .the theory of evolution is not a theory and it is suggested calling it a working hypothesis:the working hypothesis of evolution
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All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.
<span>Hot water cleans better than cold because hot water has faster moving molecules than cold water and faster moving molecules do a better job when it comes to using water to move dirt particles and such.
Have a nice day :-)</span>
