Weegy: B. providing loans and land grants. The construction and operation of the line was authorized by the Pacific Railroad Acts of 1862 and 1864 during the American Civil War. Congress supported it with 30-year U.S. [ government bonds and extensive land grants of government-owned land. ] User: Which of the following is NOT a step in the operation of a Geiger counter?
A. Nuclear radiation ionizes gas in a tube.
B. Ionized gas ... (More)