... choice B assumes an ice age period? I agree that: given ... we are in an ice age the concentration of oxygen 18 ... know only in an ice age period it is increased otherwise ...
... Los Angeles everyone over the age of 18 who drinks also ... in Los Angeles over the age of 18 who smokes are ... tear among people over the age of 18 in Los Angeles ...
... the craters were the "same age." This doesn't address the ... assumption that age matters since it controls for ... would be roughly the same age, which wouldn't create an ...
Slightly underperformed on my June exam so I'll be back at it in Sept. I just checked Cambridge's site for their LG pdf bundle and I guess it got taken down with all the PTs during the lawsuit.