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What are ice cores for climate analysis drawn from?
The cores are drilled from the ice itself - ice sheets in Antarctica and Greenland.
What type of evidence acts as a record of changes in organisms over time and indicates major changes in earths surface and climate?
the composition of ice cores
Why do ice cores taken from polar regions contain much older information about earths climate than icecores taken from mountaintops?
Because the snow is very compressed in the polar regions
Where do scientists obtain ice cores from?
Glaciers and/or the Arctic/Antarctic ice caps.
Why do scientist use ice cores?
to find out what the composition of the atmosphere was
What are Ice Cores used for?
to determent past climates
Which part of earths history is shown by analysis of ice cores?
Changes in climate
How can ice cores be used to be determine past climates?
pudding
What provides the longest record of conditionsinthe atmosphere?
Ice cores extracted from glaciers provide the longest record of conditions in the atmosphere, dating back hundreds of thousands of years. These ice cores contain trapped air bubbles that can be analyzed to reveal past levels of gases, such as carbon dioxide, providing valuable insight into historical atmospheric conditions.
Why are ice cores good indicators of past climate?
Ice cores contain tiny bubbles that contain a sample of the atmosphere from that time period. By studying the ice bubbles, it is possible to reconstruct the composition of the atmosphere at that time and thus the climate.
What is the differences and simularities of ice cores and rock layers?
ice cores are vertical timelines showing info on Earth's past. Rock layers show when each layer formed that's all I got. hope if helps
What are ice cores for climate analysis drawn from?
The cores are drilled from the ice itself - ice sheets in Antarctica and Greenland.
What type of evidence acts as a record of changes in organisms over time and indicates major changes in earths surface and climate?
the composition of ice cores
What event in earths past helped shape New York's land?
Ice age
How does a ice cores change?
You can see it!
How does ice layers show the history of Earths climate?
Ice cores drilled through the thickest glaciers at Earth's poles show the layers of snow that were deposited each season kind of like tree rings. The deepest layer in the deepest ice core is the oldest and in Antarctic, continuous ice cores date back at least 750,000 years. Gases and particles of dust trapped in the snow forming the layers in the cores continuously preserves samples of the atmosphere and these can be analyzed to provide a record of the climate prevailing as each layer was deposited.
Why do ice cores taken from polar regions contain much older information about earths climate than icecores taken from mountaintops?
Because the snow is very compressed in the polar regions
