Question

what characteristic of water means that clear water is not necessarily clean water? its ability to dissolve pollutants the color of the water high specific heat capacity the temperature of the water

Explanation:

Water can dissolve various pollutants. Even if water looks clear (no visible particles affecting color), dissolved pollutants (which are invisible) can be present. So, the ability to dissolve pollutants makes clear water not necessarily clean. The color of water (if just looking at visual color - but clear water can have dissolved stuff), high specific heat capacity (related to heat absorption, not cleanliness), and temperature (related to hot/cold, not cleanliness) are not relevant here.

Answer:

its ability to dissolve pollutants