Answer:
Intraspecific competition
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Volumes.
If you put equivalent volumes in a bag, where both weigh the same, the density might get equal.
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The chemical bond that occurs from the attraction of 2 oppositely charged atoms is an IONIC bond .
        
             
        
        
        
The type of bond formed between carbon and hydrogen is NON POLAR COVALENT BOND.
Covalent bond involves sharing of atoms between two elements; each element will donate electrons which will be equally shared by the elements involved. In the case of carbon and hydrogen, carbon has four electrons in its outermost shell, therefore it will form a covalent bond with four atoms of hydrogen each of which will donate one electron.