Answer:globe. Determine if Greenland is larger than Africa. topographical map. Plan a cross-country ski trip. RADAR. Find a safe place to land a plane on a foggy day.
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Making farm land (agriculture), terraforming (so we can build homes etc.)
The Sahara desert is important for a multiple of reasons. One is that although it is a desert, there are many fertile areas of land making it great for farming and supporting life. It also acts as a natural barrier in between north and south Africa, which was able to impact trade with the South, slowing down innovation on both sides.
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Flows are a mixture of water, rock and sediment. They move very quickly. A slide happens when a section of soil or rock suddenly gives way and moves down a slope. The material moves as a single mass along a slippery zone.
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Thanksgiving and Martin Luther King Jr. Day
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