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.
There are many different types of landforms found on the earth. mountain A mountain is a place on Earthâs surface that is much higher than the land around it. valley A valley is a lowland area between higher lands such as mountains. canyon A canyon is a deep valley with very steep sides.