Consider the following statements:
The basic difference between water pipes and sewer pipes is
1. in the pressure of liquid flow
2. in the suspended solids they carry
3. in the material used for pipes
1
1 and 3
2
1 and 2
3
2 and 3
4
1, 2 and 3
Consider the following statements:
The basic difference between water pipes and sewer pipes is
1. in the pressure of liquid flow
2. in the suspended solids they carry
3. in the material used for pipes