The trade regions or areas is related to Ethiopia's agricultural exports.
Explanation:
The trade regions or areas is related to Ethiopia's agricultural exports because the these trade regions allows the export the agricultural goods of Ethiopia. Due to this trade regions, the Ethiopia is making money and enhances its economy. There are many routes started from Ethiopia which spreads to different regions and these routes are the trading routes that allow Ethiopia to export their agricultural goods.
Dune deflation hollows are where wind has removed sand down to a level where a layer of particles too heavy for the wind to move (an armoured surface) stabilises the sand and prevents the surface being lowered further.
A crevasse is a deep, wedge-shaped opening in a moving mass of ice called a glacier. Crevasses usually form in the top 50 meters (160 feet) of a glacier, where the ice is brittle.
a mass of rocks and sediment carried down and deposited by a glacier, typically as ridges at its edges or extremity.