... , water molecules containing oxygen-18 are rarer than water molecules ... water molecules containing oxygen-18 than of all water ... -than-normal percentage of oxygen-18.
(C) ... clouds rainfall contains more oxygen-18 than ordinary oxygen.
...
I don't understand how A is the principle. Here is my breakdown:
The use of space satellites to study the environment is important. Problems can be identified well in advance, so people can act early. It makes sense that environmentalists ...
Skype is not doing well. I have a pet theory that might work; it involves clicking a link for each individual conversation we’d like to join rather than having a regular group of 25 people in the ...
... everyone over the age of 18 who drinks also smoke. But ... Angeles over the age of 18 who smokes are drinks. It ... people over the age of 18 in Los Angeles there are ...
I am pretty clueless on this one. I had the answer down to C or D, and I chose D (kept it during BR). I am completely lost as to how E is the weakener, so help would be greatly appreciated. Here is my breakdown:
I really don't like any of these answer choice, but I was pretty confident when I eliminated D. Can someone explain how D resolves the paradox? In my mind, it makes it weirder.
Right after the war, the area that had been subject to oil ...