Rabab36
can anyone explain difference between A and B
egmatHi, im not sure if Im right, but this is how I saw it.
First, the sentence talks us about "Methane", giving us some extra information wich is between commas. Then they told us that Methane "accounts for 11 percent of all domestic greenhouse gas emissions".
The question finish with the independent clause "about a third of that is estimated to come from oil and gas operations".
Here, the author is trying to convey that Methane accounts for 11 percent of all domestic greenhouse gas emissions and that a third of "the entire existing methane" is estimated to come from oil and gas operations.
In A) finishing with " 11 percent of all domestic greenhouse gas emissions + Comma" distords the intended meaning by saying that "a third of that 11 percent of all domestic greenhouse emissions" is estimated to come from oil and gas operations, so discarded.
Also is joining 2 independent clauses with a simple comma, wich is incorrect.
In B) The problem is fixed by using a semi colon, wich permits the phrase " a third of that" refer back to "Methane" and mantain the intended meaning.
Also use a correct form to join 2 independent clauses.