1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 win Ques. #1 How old is the Earth? 4.6 billion years Back Ans. Ques. #2 What is the duration of the Silurian period? 28 million years Ans. Back Ques. #3 During which period did the eurypterids become extinct? Permian Ans. Back Ques. #4 How old are the oldest known rocks? About 4.2 billion years Ans. Back Ques. #5 Why didn’t dinosaurs eat the earliest grasses? Grasses didn’t evolve until after the dinosaurs were extinct. Ans. Back Ques. #6 During which period of Earth history did North America collide with Avalon? Devonian Ans. Back Ques. #7 Name 2 characteristics of a good index fossil. Short lived and Widespread Ans. Back Ques. #8 Lichenaria, Cystiphyllum, and Pleurodictyum are all........... Corals Ans. Back Ques. #9 When did the Palisade sill intrude? About 200 million years ago Ans. Back Ques. #10 When did extensive coal-forming forests exist on Earth? During the Pennsylvanian division of the Carboniferous period or between 299 and 318 million years ago Ans. Back Ques. #11 Near which NYS city (pick one) might there be fossils of the first coral reefs? Oswego, Watertown, Utica, Massena, Plattsburgh,or Albany Ans. Back Ques. #12 What was the duration of the Phanerozoic eon? 542 million years Ans. Back Ques. #13 Why are there no fossils of the earliest grasses in NYS? Earliest grasses appeared during the Paleogene period and there are no Paleogene rocks in NYS Ans. Back Ques. #14 During which period did the advance and retreat of the last continental ice sheet occur? The Quaternary Ans. Back Ques. #15 About how many years were the trilobites on Earth? About 290 million years Ans. Back Ques. #16 When did the earliest stromatolites evolve? About 3.3 billion years ago Ans. Back Ques. #17 How many years is represented by time B? 11,400 years Ans. Back Ques. #18 Which is the oldest layer? Grey limestone Ans. Back Ques. #19 What is the half-life of this element? 200 years Ans. Back Ques. #20 Which element is uranium 238? Element ‘B’ Ans. Back Ques. #21 Put all the events in order from oldest to youngest. D, C, B, E, fault, erosion of B & E, A Ans. Back Ques. #22 The “stable decay product shown in the graph is probably Nitrogen 14 Ans. Back Ques. #23 Which element has the longest half life? Element ‘D’ Ans. Back Ques. #24 During which geologic era did Pangaea begin to break up? Mesozoic Ans. Back Ques. #25 Which column contains the youngest rock? Column III Ans. Back Ques. #26 When did this become extinct? 359 million years ago? Ans. Back Ques. #27 Which city in New York State is on the oldest bedrock? Old Forge, Syracuse, or Kingston? Old Forge, NY Ans. Back Ques. #28 Near which NYS city might it be possible to find mammoth bones in the sediments? Riverhead or New York City Ans. Back Ques. #29 What is the age (time period) of the bedrock that makes up the Allegheny Plateau? Devonian Ans. Back Ques. #30 If a fossil contains 12.5% of it’s original C14, how many half lives have passed? Three Ans. Back YOU’RE A WINNER! The Neogene and the Ordovician are periods of Earth history