Global warming, Cosmic Background radiation (even though most is blocked not ALL), and pollution.
Answer:
The sun'll likely absorb the radiation if it is close enough (Which it will never be)
Explanation:
The true answer is: It's conserved because the total number of H atoms on each side is 12.
the first two answer is wrong because it's conserved not as mentioned, It's not conserved.
and the last one also wrong because the total number of O atoms are equal at the two sides but not equal 2.
The answer is c. because you have to increase concentration of h2
<span>Hydroxy group..
... :):) ....</span>