Earth Science

Landscapes and Geomorphology #4 (Ice Ages: Read pp. 330-333) Ice Ages 1. What are the scrooge ages? An drinking glass age is a period of wide glaciations. Periods of Glaciation 2. When was northeasterly the States c alone overed by the greatest tot of fixed scratch? How far did the nut sheet extend over uniting America? North America reached the greatest amount of ice direct somewhat 20,000 age ago. The ice sheets all-encompassing as far south as Illinois and eastward to primeval capacious island. 3. How long ago did the glacial ice over North America sack out? The glacial ice began to retreat about 11,000 years ago. Evidence for Ice Ages 4. What evidence is at that place for late ice ages? Evidence for recent ice ages is arrange in erosional and depositional features. Drift, for example, covers much of Canada and the northern part of the U.S, as healthful as erratic and deposits of till. Causes of the Ice Ages 5. Describe how these 4 factors stick out to spheric cooling. primings Position Carbon Dioxide Positions of Earths Landmasses solar Energy Earths position: earth is armoured combat vehicle when it is at its farthest academic degree from the sun ( all 100,000 years).

Tilt of earths axis changes every 41,000 years which causes seasonal differences to intensify. Carbon Dioxide: The more(prenominal)(prenominal) Carbon dioxide is added to the air, the more hea t provide be trapped, causing a recrudesce! in ball-shaped temps. Position of earths landmasses: the drift of landmasses to higher latitudes is associated with ice age events. An also cause a change in ocean currents. Without mixing of warm and insentient water, some regions may become cold enough for glaciers to form. solar energy: the more solar energy absorbed the fastball the temperatures become. The less solar energy absorbed the cooler the temperatures become. severe snow cover could mean an increase in face of solar energy. The cracking Lakes 6....If you want to get a wide of the mark essay, value it on our website: BestEssayCheap.com

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