I think the correct answer among the choices presented above is option C. The <span>atomic number of an atom is equivalent to the number of protons in the nucleus. For a neutral atom, it is also the number of electrons since in a neutral atom protons and electrons are present in equal number.</span>
the fire spreading is what represents the form of heat transferring from one atom to another within an object and direct contact
The answer is A: biodegradable.
Please refer to the attachment for a complete classification of your specified matter.