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seasons are caused by revolutions. hope this helps
 
        
             
        
        
        
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Ionic compounds are ion compounds. These ions are atoms that gain or lose electrons, resulting in a net positive or negative charge. Metals tend to lose electrons, so they have a net positive charge and become cations. Non-metals tend to gain electrons, creating a net negative charge of anions.
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Your heart circulates your blood throughout your body everytime it beats.
        
             
        
        
        
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Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.
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There are many things that can be considered as a limiting factor   such as water supply, competition, habitat space et cetera.
These factors affects the carrying capacity of the given environment. The human beings, animals uses food, space and water as their basic need.
These can affect the population of the organism if any of given components are presented in a limited amount.
The example of limiting factor that is human being to control the carrying capacity is food, space and water.