Multiple Choice
Oxygen-18 and oxygen-16 are useful in studying the geologic past,including gathering information about past climate,because ____________.
A) ozone formation and decay depend on the ratio of oxygen-18 to oxygen-16
B) both water and calcite contain oxygen
C) ice and plankton skeletons are often found in layers that geologists can age-date.
D) Both b and c are correct.
Correct Answer:
Verified
Correct Answer:
Verified
Q3: In the last few decades,global warming has
Q18: What environmental phenomenon caused most industrial nations
Q36: Change within the Earth system is unidirectional
Q44: According to the graph below,when did ocean
Q46: Albedo is the tendency of a surface
Q47: The figure below shows changes in sea
Q50: Cyclical global change includes the formation of
Q52: How much has atmospheric CO₂ increased in
Q53: The figure below shows the transmission,absorption,and reflection
Q54: Tectonic uplift and resultant chemical weathering _