<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>
6co2+6h2o + energy , this are the reactants
The greenhouse effect.
Hope this helps!
-Payshence xoxo