Question

help

Answer 1

The 1st and last

Answer 2

The rest are length measuring units kinda. Cm Is not that common nor inches

Answer 3

thats what i thought thanks

Answer 4

The water can be measured as a mass or as a volume.
It is more common to measure it as a volume.
The rate then will be mass per time or volume per time.
Identify which rates have units of volume per time or mass per time.

Answer 5

Oh, I see.
All units are volume per time.
All units are correct for a volume rate. The question is which units are practical.

Answer 6

Yup

Answer 7

Then, I agree with @Will.H