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Ice that formed thousands of years ago is often found to contain tiny bubbles of gas. this gas came from __________. ice that formed thousands of years ago is often found to contain tiny bubbles of gas. this gas came from __________. the atmosphere tiny zooplankton that lived in the water before it froze water vapor released from melting ice tiny phytoplankton that lived in the water before it froze

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Atmosphere

Atmospheric gas from prehistoric eras is found trapped in glaciers in the form of bubbles. These gas bubbles are the basis of studying ice cores as they provide us with accurate estimates of the conditions of past climates. The bubbles allow us to determine the composition of atmospheric air, such as the carbon dioxide and methane concentrations, as well as allow us to determine air temperatures in the past.

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