How was the building of the railroads financed?

Most of the railroads that were built in America were built with the assistance of the Federal government through grants. The railroad companies would receive millions of acres of public lands of Congress so they could build the railroads there and sell the rest gaining money to finance the construction.

Some were not built with the assistance of the government, the smaller ones had to purchase the land from private owners.

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful. 

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.