Mar'ss's' Atmosphere

<p>U guys remember the passage about Earth vs Mars? Does it only seem weird to me? But nowhere did it talk about Earth having these dust devils specifically...I know since Earth was in all of the answer choices it was right..but still. and oh for the 1 question regarding mars atmosphere...i think i got kinda screwed over from watching nat. geo...I swear i remembered them saying "mars atmosphere", but now i have clearly realized it was mars's atmosphere. !@!#$#$@ another stupid mistake. arrghhhh</p>

<p>I remember an english question like this.... I think.</p>

<p>Was the answer Mars' or Mars's?</p>

<p>I put Mars's...I think that's right. in this case it wouldn't have the apostrophe after the S i think...</p>

<p>Yes I put down Mars's</p>

<p>Mars' would refer to possession for several of mars... but theres only one mars</p>

<p>yeah. I had to actually look up use of the apostrophe after noticing how bad I was at it on a practice test. using apostrophe afterwards (Mars') is used for in cases where the word incompases multiple things (students'). Meanwhile, I remember from the book Great Expectations, that when saying something is owned by Jaggers, they would say 'Jaggers's _____'. Looks odd, but gramatically correct.</p>

<p>Actually, both Mars' and Mars's are correct for showing something is the possession of Mars; although it is strange, if a singular word ends with an s just one apostrophe is also acceptable for ownership. If Mars was plural, it would probably be "Marses" or something to that extent. Either way, if i recall correctly, the question's answers entailed picking either "Mar's" or "Mars's"; there was no "Mars'" anyway.</p>

<p>There was a "Mars's atmosphere" earlier in the passage and it was not underlined, so I assumed it must have been correct and picked it for the last question.</p>