LUOA Earth Science Final Exam Questions and Answers Graded A

LUOA Earth Science Final Exam Questions and Answers Graded A What is coprolite? fossilized animal poop Which of the following are considered trace fossils? (Choose 3) imprints, trails, and tracks An example of an index fossil would be _______________. (Choose 2) trilobite and ammonite A hollow space left behind after the organism completely disintegrates is called an(n) ______. mold Which of the following are considered original remains? (Select all that apply) cast organism stuck in tree sap Mummification Freezing In order for a fossil to be an index fossil, it has to have all of the following characteristics: ______________________. (Select all that apply) very rare Appearing in a very short timeframe Easy to identify Covers a wide geographic area Any evidence preserved in rock that shows that an organism existed in the past is known as a(n) _______________. fossil A ________ is a copy of the original organism that formed out of minerals. cast One advantage to finding index fossil Is that you can use it to ______________________. (Choose 3) determine that another fossil nearby is about the same age match one rock column to another by matching the index fossils determine the relative age of the fossils above and below it Index fossils help to determine the __________________ age of another fossil found near it. relative Rock is always laid down _____________. horizontally An unconformity in the rock layers can be an area _______________. that was eroded According to the Law of Superposition, rocks are the same horizontally but _______________. the further down you go the older the rocks are Transform boundaries ____________________. cause the plates to slide past each other The divider where the continental crust changes to oceanic crust is ___________________. the continental margin The Himalayan Mountains formed _____________________. when India crashed into Eurasia A continental arc ___________________. is formed at active continental margins Island arc complexes _______________________. are mostly andesitic stratovolcanoes formed at active oceanic margins Divergent