A Carbon Dioxide Concentration Record from the Vostok Ice Core

Multiple Choice

A carbon dioxide concentration record from the Vostok ice core indicates

A) little change in atmospheric CO₂ concentration before the Industrial Revolution.
B) dramatic increases in atmospheric CO₂ associated with ice ages.
C) dramatic increases in atmospheric CO₂ associated with interglacials.
D) dramatic changes in atmospheric CO₂, but no obvious association with the glacial/interglacial cycle.
E) an inverse correlation between atmospheric CO₂ concentration and temperature.