Scientists have studied the fossilized shells of prehistoric, single-celled marine organisms. some of these shells were thin, which indicates that the organisms lived in very warm ocean water. such evidence indicates that the climate during this time may have been

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

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In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .