ConcepTest: Ocean Salinity During an Ice Age
This material was originally created for
Starting Point:Introductory Geology and is replicated here as part of the SERC Pedagogic Service.
Question:
One million years ago ice sheets covered much of the Earth's land surface during an ice age. How did this affect the salinity of the oceans?
a. Oceans were saltier than today.
b. Oceans were less salty than today.
c. Ocean salinity was the same as today.
a. Oceans were saltier than today.
b. Oceans were less salty than today.
c. Ocean salinity was the same as today.
Student Responses:
No data yet. The correct response is a.
If you would like to help acquire more Before and After statistics for this example, please contact the authors (see link at top of page).