When was the wall built

Which controversial political issue of the 1920 is reflected in the cartoon

Due to what conditions were slaves brought into brazil to work the fields? the climate was similar to that of africa. the indigenous workers were hired as managers. the indigenous workers had died from exposure to diseases from europe. slaves from africa were already used in other regions and brazil was the next location.

Complement what happens to the demand for butter, if the price of margarine increases? 2. substitute 3 butter and margarine 3. demand increases ice cream and ice cream cones 4. demand decreases what happens to the demand for ice cream cones, if the price of ice cream increases?