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.
What are the four major types of air masses? The 4 major air masses are continental polar (cP), continental tropical (cT), marine polar (mP) and marine tropical (mT). Generally, continental air masses are drier than marine air masses, and polar air masses are cooler than tropical air masses. CONTINENTAL POLAR. cold and dry air. forms on land. ... CONTINENTAL TROPICAL. hot and dry air. forms on land. ... MARITIME TROPICAL. forms over water. hot moist air. ... MARITIME POLAR. forms over water. cold moist air. ... maritime. = ocean (moist/humid air) continental. = land (dry air) polar. = cold. tropical. = warm/hot.