The idea of froth floatation method came from a person X and this method is related to the process Y of ores. X and Y, respectively, are :
a) |
Fisher woman and concentration |
b) |
Washer woman and concentration |
c) |
Washer man and reduction |
d) |
Fisher man and reduction |
The idea of froth floatation method came from a person X and this method is related to the process Y of ores. X and Y, respectively, are :
a) |
Fisher woman and concentration |
b) |
Washer woman and concentration |
c) |
Washer man and reduction |
d) |
Fisher man and reduction |
Froth floatation is a method of concentration and it was discovered by a washer women.