What evidence might suggest a time interval between two rock layers?
A) a metamorphosed band in the bottom layer
B) a metamorphosed band in the top layer
C) a coal layer between the two layers
D) an irregular boundary between the two layers
Question 2
What did William Smith correlate while researching coal mines in Britain?
A) fossils in different layers in the same mine
B) fossils in the same layers in different mines
C) composition of coal seams in different mines
D) types of rock layers in different mines
The Geologic Time Scale
Using a vacuum hose and a grounded test light to ground one cylinder at a time on a DIS. This works ...
The environmental policy changes over time
Change in Bone Mass over Time In your early years, more bone mass is added than lost in your body
Physics: Power, Energy and Time
Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf