Comprehension Passages

165-The author informs us that because of the way geological processes take place, …………. .

A)humans will never really understand how geology works

B)sophisticated equipment is vital to the geologist's work

C)several other sciences can be useful to the study of geology

***D)data needs to be gathered over a long period of time

E)it takes a long time to train in order to become a geologist

In Memphis, Tennessee, the unofficial capital of the Mississippi Delta, many people, black and white, have always been drawn to the blues music. It is this racial cross-over that helped inspire Memphis's most famous adopted son, Elvis Presley, to fuse black blues and white country and gospel music into rock'n'roll. Whereas rock'n'rol became universally popular, very few black blues musicians gained commercial success, and the blues remained no more than a side-show, appreciated mainly by the poor blacks who created it in the first place. Surprisingly though, it was white rock groups from Britain, particularly the Rolling Stones, who popularised the great American blues guitarists and singers by acknowledging their debt to them.