SC.8.E.5.9
There are different geological time period .What is NOT a geologic time period? A. Pangaea Era B. Cenozoic Era C. Mesozoic Era D. Paleozoic Era
A. Pangaea Era
There are used to determine the top three layers. Which principal would be used to determine the relative ages of the top three rock layers. A. Superposition B. Uniformity C. Absolute dating D. Radioactive decay
A. superpositon
There are a tough condition.Which of the following conditions makes fossils formation more likely? A.Buried slowly, B.attacked by scabengers, C.made of hard parts, D. composed of soft parts.
C.made of hard parts.
There are different ages of a rock layers. During field investigations of undisturbed rock layers, scientist can assume that the relative age of that rock layer is probably _______? A. Younger than the rock layer below it. B. older than a fossil C. rock layers D. radioactive decay
A. Younger than the rock layer below it.
there are many types of radioactive decay. In one type of radioactive decay, which of the following breaks down releasing an electron? A.Alpha particles B.beta particle C.Proton D. Neutron
D. a Neutron
They are a method to find in rocks.George used radiometric dating in a laboratory investigation. He used this method because he wanted to find________? A. absolute ages of rocks. B. the climate during a certain era. C.the types of fossils found in a rock D. All of the above.
A. absolute ages of rocks.
What would happen if someone were able to mix a large amount of the daughter isotope into a sample before it was subjected to radiometric dating? A. the sample would be easier to measure. B. the sample would seem older that it was.C. the sample would decay more quickly D. nothing would happen.
B. the sample would seem older that it was