B
Protect themselves from predators
<h3><u>Answer</u>;</h3>
A triple covalent bond because each atom requires three more electrons to complete its octet.
<h3><u>Explanation</u>;</h3>
- A triple covalent bond is a covalent bond formed by atoms that share three pairs of electrons.
- For example;<em><u> in a diatomic molecule such a nitrogen; A nitrogen atom has five valence electrons, which can be shown as one pair and three single electrons. </u></em>When combining with another nitrogen atom to form a diatomic molecule, the three single electrons on each atom combine to form three shared pairs of electrons.
Answer- The intermingling of atoms takes place the help of diffusion.
Explanation- There are two areas one has a higher concentration and the other has a lower concentration and a substance moves from higher to lower and the process happening is called diffusion.
Combustion is heating up of the substance hence does not have any intermingling atoms and energy transport also does not have any atoms mingling together hence diffusion is the correct option.
