Commonwealths .
a.
only have ceremonial ties to their mother country
b.
are involuntarily linked to a mother country
c.
are not dependent upon their mother countries after gaining independence
d.
are dependent upon their mother countries for defense and foreign policy issues

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.