The most influential factors include the parent material (the rocks from which thesoil<span> has come), the </span>climate<span> and terrain of the region, as well as the </span>type<span> of plant life and </span>vegetation<span> present, and, of course, human influence. ... These </span>soils<span> but are less leached than the tundra </span>soils<span>.</span>
<span>The Mesopotamians made sails to harness the wind to move boats, and eventually sailed and traded as far away as what is now India. It allowed them to trade good with faraway lands</span>
