Earth Sciences & Geology
What dating method do they use to determine the age of really old fossils?
Shared by Berry: Yesterday there was news of a 3.3 million year old Australopithecus afarensis fossil from Ethiopia. I’m just curious as to how they ascertain the age. I know it’s not carbon-14 dating, that’s 2 orders of magnitude beyond its range. It’s been a while since I learned about this stuff, [...]
How much oil could they find in alaska and the coasts?
Shared by Lupita: Bush is proposing lifting the ban for digging in alaska and the coasts.How efficient would that be.How much oil is there?
What are the four major methods used to study climate change?
Shared by Luna: The full task is: Describe the four methods used to study climate change. For each method, identify one climate in which it would be used.
Can anyone help me?