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Answer:
6. For glaciation to begin, something needs to cause Earth's temperatures to drop. If this happens, snow that falls on the polar ice caps doesn't melt, and glaciers grow. As snow and ice reflect sunlight, the Earth's temperature is reduced even further, causing glaciers to continue growing.
7. Sea level changes cause marine transgressions and regressions. During a marine transgression, the shoreline moves inland, leaving sedimentary deposits that contain fossils. The shoreline retreats during a marine regression, leaving behind the deposited sediments.
Explanation:
The causes of glaciation are due to downfall of the temperature of earth. The process of glaciation is explained as below. Sea level changes due to the transgressions and regressions of marine.
What is Glaciation?
Glaciation refers to the formation of the glaciers due to the low temperature and forming like a landscape. It is a massive body of the slow moving ice.
Something needed to lower Earth's temperature for glaciation to start. In this scenario, snow falling on the polar ice caps would not melt, and glaciers would expand. Glaciers keep expanding because the Earth's temperature drops even more as a result of snow and ice reflecting sunlight.
Marine transgressions and regressions are brought on by changes in sea level. The shoreline migrates inland during a maritime transgression, leaving sedimentary deposits that are rich in fossils. During a marine regression, the shoreline recedes and the deposited sediments are left behind.
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