SCI 225 Exam 2 | Grand Valley State University | UPDATED
Questions with 100% Verified Answers
Question: Glacial Eratic
Answer:
Large boulder carried and dropped by glaciers moving
Question: Louis Agassiz
Answer:
Created the Glaciation Hypothesis after studying glacial erratics and striations
Question: Glaciation Hypothesis
Answer:
Over time climate can change and during cold periods glaciers move down and during warm periods they
retreat
Question: HMS Challenger
Answer:
A ship that took a four year voyage to study the ocean by ocean dredging and found fossils in areas where the
organism would not have been native based on current climate
Question: Milutin Milankovitch
Answer:
Studied changes in orbital parameters and found that they lead to glaciation periods
Question: Frank Libby
Answer:
Discovered Carbon dating that can be used to determine how old substances are through half-lives. He dated
wood in glacial material by looking at the carbon isotopes
Question: Method of absolute dating
Answer:
radio isotopes (Carbon-14)
Question: Cesare Emiliani
Answer:
, Studied ocean sediment cores and found that smaller O18/O16 ratios within the oxygen of CaCO3 in the ocean
mean the ocean was warmer at the time and larger ratios mean it was colder.
Question: CaCO3
Answer:
calcium carbonate
Question: When the ocean is warm/cold....
Answer:
....the land temperatures are warm/cold
Question: James Hays
Answer:
Mathematically supported Milankovitch's hypothesis about orbital parameters
Question: JOIDES Resolution
Answer:
A ship that drills into seafloor to take core samples as a way of collecting evidence that supports climate change
conclusions
Question: Do ocean sediment core data and ice core data agree?
Answer:
Yes. When it is cold on land, the oceans are cold and when it is warm on land the oceans are warm. (The whole
earth either warms, or the whole earth cools)
Question: Major Glaciations
Answer:
More often we have been an ice free planet. This means higher sea levels by nearly 100 yards (Florida
underwater)
Question: Albedo
Answer:
Questions with 100% Verified Answers
Question: Glacial Eratic
Answer:
Large boulder carried and dropped by glaciers moving
Question: Louis Agassiz
Answer:
Created the Glaciation Hypothesis after studying glacial erratics and striations
Question: Glaciation Hypothesis
Answer:
Over time climate can change and during cold periods glaciers move down and during warm periods they
retreat
Question: HMS Challenger
Answer:
A ship that took a four year voyage to study the ocean by ocean dredging and found fossils in areas where the
organism would not have been native based on current climate
Question: Milutin Milankovitch
Answer:
Studied changes in orbital parameters and found that they lead to glaciation periods
Question: Frank Libby
Answer:
Discovered Carbon dating that can be used to determine how old substances are through half-lives. He dated
wood in glacial material by looking at the carbon isotopes
Question: Method of absolute dating
Answer:
radio isotopes (Carbon-14)
Question: Cesare Emiliani
Answer:
, Studied ocean sediment cores and found that smaller O18/O16 ratios within the oxygen of CaCO3 in the ocean
mean the ocean was warmer at the time and larger ratios mean it was colder.
Question: CaCO3
Answer:
calcium carbonate
Question: When the ocean is warm/cold....
Answer:
....the land temperatures are warm/cold
Question: James Hays
Answer:
Mathematically supported Milankovitch's hypothesis about orbital parameters
Question: JOIDES Resolution
Answer:
A ship that drills into seafloor to take core samples as a way of collecting evidence that supports climate change
conclusions
Question: Do ocean sediment core data and ice core data agree?
Answer:
Yes. When it is cold on land, the oceans are cold and when it is warm on land the oceans are warm. (The whole
earth either warms, or the whole earth cools)
Question: Major Glaciations
Answer:
More often we have been an ice free planet. This means higher sea levels by nearly 100 yards (Florida
underwater)
Question: Albedo
Answer:
