Answer:
is is A i might be wring tho im not the best :/
<span>The answers are the substances found in the
simple compounds of Hydrogen</span><span>, ammonia, methane and water and when they will undergo melting or boiling, there are weak
'intermolecular forces' that break them which is the reason why it is not a strong
covalent bond.</span>
Aerobic cellular respiration uses O2 to break down glucose molecules into Adenonsine Triphosphate. So yes?