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Author Question: In the Cretaceous period of earth history there is clear evidence that the climate was much warmer ... (Read 37 times)

abc

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on: Feb 28, 2020
In the Cretaceous period of earth history there is clear evidence that the climate was much warmer than today. It was so warm that areas near the pole had tropical vegetation like palm trees, and there was almost certainly no sea ice and glaciers probably only existed at very high altitude. This produced widespread anoxia (stagnant, no-oxygen condition) on the floor of the oceans. From your knowledge of ocean circulation, which of the following explanations could account for the anoxia?
◦ The lack of polar sea ice stopped any thermohaline deep circulation in the oceans, stratifying the water column to produce anoxia in the deep sea.
◦ The greenhouse affect made planktonic algae grow so fast that they filled the ocean with algae, stagnating the ocean.
◦ The greenhouse affect led to so much CO2 in the atmosphere that animals all died from lack of oxygen, stagnating the oceans.
◦ The water got so warm it couldn't hold any oxygen, stagnating the water column.
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
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Marked as best answer by abc on Feb 28, 2020

aruss1303

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Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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abc

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Reply 2 on: Feb 28, 2020
YES! Correct, THANKS for helping me on my review

aruss1303

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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