1 For subsidence caused by sudden collapse of the ground to form sinkholes, several measures can be taken. 2  First, geologists can make maps of areas known to be underlain by rocks like limestone, gypsum, or salt, that are susceptible to dissolution by fluids.
The Navajos used bows and arrows, spears, clubs, tomahawks, knives and sticks among their tools and weapons. Beyond these, they also used bolas and... The Navajos used bows and arrows, spears, clubs, tomahawks, knives and sticks among their tools and weapons. Beyond these, they also used bolas and blowguns. The Navajos employed the use of several tools and weapons:Bows and arrows were used by Native Americans to defend themselves, and sometimes for fishing. They also used them for hunting animals like bison.When fighting against European explorers, Native Americans used spears.
The lakota Tribe used teepees for their shelters,mostly made of bison skin which provided clothing,and food. 3 people found this useful. Edit. Share to: 1  A Review of Craftsman and MAC Line Wrenches A line wrench is also known as a tube wrench, flare nut wrench, and a flat nut wrench.he Spokane tribe used many different weapons in their time. Some  of their weapons were clubs, harpoons, bows and arrows, and slings.