To fight the Spanish-American War. From 1899 until 1902 the United States fought against Spain to take control of Spain's colonies. Spain was defeated and the United States kept the control of Cuba, Puerto Rico and the Philippines which was a big loss for Spain but gave the U.S. a better control of the Caribbean and the Asian South-Eastern regions.
The Populists believed that the federal government needed to play a more active role in the American economy by regulating various businesses, especially the railroads.
Answer: The gas laws were developed at the end of the 18th century, when scientists began to realize that relationships between pressure, volume and temperature of a sample of gas could be obtained which would hold to approximation for all gases. Gases behave in a similar way over a wide variety of conditions because they all have molecules which are widely spaced, and the equation of state for an ideal gas is derived from kinetic theory. The earlier gas laws are now considered as special cases of the ideal gas equation, with one or more variables held constant.
Explanation: