SCI 225 EXAM 2 fully solved

SCI 225 EXAM 2 How can we know climate of the past? - correct answer ice cores and sedimentary rocks Louis Agazzis - correct answer created glaciation hypothesis after studying glacial erratics and striations Glacial erratics - correct answer enormous boulders transported and deposited by glaciers glaciation hypothesis - correct answer over time climate can change and during cold periods glaciers move down and during warm periods they retreat HMS challenger - correct answer a ship that took a voyage to study the ocean by ocean dredging and found fossils in areas where organisms would not have been native bc of climate militin milankovitch - correct answer studied changes in orbital parameters and found they led to glaciation periods frank libby - correct answer Carbon dating can be used to determine how old substances are method of absolute dating - correct answer radio isotopes (Carbon-14) Cesar's Emiliani - correct answer smaller 018/016 ratios within oxygen of CaCO3 in the ocean mean the ocean was warmer at the time. larger ratios mean it was colder. When the ocean is warm/cold.. - correct answer the land temperatures are warm/cold JOIDES Resolution - correct answer a ship that drills into sea floors to take core samples as a way of collecting evidence of climate change