All of the following helped farmers during the late 19th century EXCEPT
Athe development of insecticides and germicides.
Bthe development of artificial fertilizers.
Cthe development of colleges focused on agricultural and mechanical arts.
Dthe development of gold backed currency.
All of the following helped farmers during the late 19th century EXCEPT
Athe development of insecticides and germicides.
Bthe development of artificial fertilizers.
Cthe development of colleges focused on agricultural and mechanical arts.
Dthe development of gold backed currency.