Answer:
8x+20=11x-31 so subtract 8 from 11 and add 31 to 20. This gets you to 3x=51, or x=17
Explanation:
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(I'll answer the last question first)
The diffusion of agriculture, as theorized by Carl Sauer, a cultural geographer, notes that the earliest form of agriculture was vegetative planting. Then the process of seed planting occurred some time later. After the early human settlement has developed more of farming methods.
Vegetative planting is characterized by cutting the stems of a plant, or dividing part of its roots and transplanting them into soil. This was believed to be the first method, as it was in this method the early human tried to wild plants nearer to their settlements for easier access to food.
While on the other hand, Seed planting was a newer technology for the early humans. It involves the collection of the fruit and drying of seed to be planted. It is also happen in annual basis unlike the transfer of stems and roots of wild plants.
The forces that are causing the plate movements are the ones that are responsible for all the geologic events on Earth, as well as being the main constructive force when it comes to Earth's surface structures. Because of the constant movement of the plates, there is constant adjustment in the crust, lot of pressure (vertical and horizontal), magma is pushing through towards the surface, and all of that managed to reshape the relief. Some things may need millions of years, while others can happen in an instant, but whichever way it is, the end result is the formation of new structures on the surface of our planet, such hills, mountains, valleys, volcanoes, rifts etc.
<span>Canadian canoe routes</span>
