Test 2 SCI 225 fully solved 2024/2025

Test 2 SCI 225Who is Louis Agassiz? - correct answer came up with glacial erratic; where glaciers deposited rocks differently (1830) Who is Frank Libby? - correct answer came up with half-life which discovered dated wood in glacial material What is HMS challenger? - correct answer SIX scientists who when on a 4-YEAR expedition and discovered 4,700 new species of animals and plants. the found FOSSILS in the wrong climate Who is Cesare Emiliani? - correct answer observed changes in ocean temperature. fossils in the ocean cores are seen worldwide AND they are cyclical like Ice cores. Who is Milutin Milankovitch? - correct answer spent 30 years working on the mathematics of the orbital parameters. generated a hypothesis saying changes in orbital parameters forces Earth's climate and temperature to change. Who is John Hayes? - correct answer used math to test if ocean sediment record or temperature matched orbital forcing (it did) he also compared oxygen isotopes of fossils to eccentricity What type of Ice ages in Michigan do we have? - correct answer Moraine What is Moraine made up of? - correct answer rock that is smashed. (till) What is Outwash? - correct answer melted ice that carries sand/gravel. Who came up with Earth's orbital cycles? - correct answer Milankovitch what are the three cycles called? - correct answer Eccentricity, obliquity, and precession