Base your answers to questions 48 through 50 on the rock columns below and on your knowledge of earth
science. the rock columns represent four widely separated locations, w, x, y, and z. numbers 1, 2, 3, and 4
represent fossils. the rock layers have not been overturned.

which numbered fossil best represents an index fossil?
(1) 1
(2) 2
(3) 3
(4) 4

but vtfeivhrvh etuoghruotg joe the ouer ou er. oh ui. gihef. iuf fiudfgifoer hofire hiroshima oiefrh   jopwfe . . . *cuisdfn. duopduck duck

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.