
Ice Cores
Flashcard
•
Biology
•
University
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What are ice cores?
Back
Ice cores are cylindrical samples of ice drilled from ice sheets or glaciers, which contain layers of ice that have accumulated over thousands of years.
2.
FLASHCARD QUESTION
Front
How do ice cores provide information about past climates?
Back
Ice cores trap air bubbles and other particles, allowing scientists to analyze the composition of the atmosphere at different points in time.
3.
FLASHCARD QUESTION
Front
What is the significance of the air bubbles trapped in ice cores?
Back
The air bubbles provide a direct record of past atmospheric composition, including greenhouse gas concentrations like carbon dioxide.
4.
FLASHCARD QUESTION
Front
What can scientists learn from the layers of ice in ice cores?
Back
Scientists can determine temperature changes, volcanic activity, and even precipitation patterns over time by studying the layers.
5.
FLASHCARD QUESTION
Front
How far back in time can ice cores provide climate data?
Back
Ice cores can provide climate data going back as far as 800,000 years, depending on the location.
6.
FLASHCARD QUESTION
Front
What is the relationship between ice core data and climate change?
Back
Ice core data helps scientists understand natural climate variability and the impact of human activities on climate change.
7.
FLASHCARD QUESTION
Front
What tools are used to analyze ice cores?
Back
Scientists use various tools, including gas chromatography and mass spectrometry, to analyze the gases and particles trapped in ice cores.
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