Why did cattlemen build ranches in the great plains

Answer,

It was a cheap source of food

Explanation.

Cattle ranching was important because it gave settlers food and money.Increase in population resulted to high demand for food and cattle ranching supplies this demand.Beef and dairy products from the cattle acted as food to the European settlers.Through selling products from the cattle  they got money in return.Cattle ranching led more land under agricultural use .

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.