Estimate and compare construction costs for different years in the same city. To estimate the national average construction cost of a building in 1970, knowing that it cost $900,000 in 2016: INDEX in 1970 = 28.7. INDEX in 2016 = 207.2. Note: The city cost indexes for Canada can be used to convert.
The four types of landforms are: Mountains, Plains, Plateaus and  Valleys. These types of landforms can be found in any part of the  world. Landforms also have different ide â¦ ntifying characteristics. Answered.
The Four Field System. Viscount Townshend successfully introduced a new method of crop rotation on his farms. He divided his fields up into four different types of produce with wheat in the first field, clover (or ryegrass) in the second, oats or barley in the third and, in the fourth, turnips or swedes.The turnips were used as fodder to feed livestock in winter. Clover and ryegrass were grazed by livestock.he Four Field System. Viscount Townshend successfully introduced a new method of crop rotation on his farms. He divided his fields up into four different types of produce with wheat in the first field, clover (or ryegrass) in the second, oats or barley in the third and, in the fourth, turnips or swedes.