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.
While some sources still maintain that there are only three, Thomas and Goudie list four principal large-scale coral reef types â the fringing reef, barrier reef, atoll and table reef â while Spalding et al. list five main types â the fringing reef, barrier reef, atoll, bank or platform reef and patch reef.