What was a prime motivation for Russia's colonial expansion In the late 19 and early 20 centuries?

How many inches are in 2 feet 6 inches? How would you show one thousandths? What was the length of the meter as established by the French academy of science? Which is larger a Fahrenheit degree or a Kelvin? How big was Fibonacci's family? What percent of 150 is 71? What is the average of 7 4 5 6 and 3? Is 1784 odd or even? How do you know how many places are in fifty million without writing the number in standard? How can kids stay awake for 24 hours? How many chord are there in a circle? Is 215 rational? Which two groups would have had shaved heads at certain times throughout history? What 2 prime numbers are factors of 21? What is 40N 2W? What kind of geometric figure is a rectangle? Can there be more than one mean? How many composite numbers are between 0 and 20? What is the amount of surface a shape has? Which area is know as the lungs of the earth and why in which area?