Tailings
Slurry is a liquid concrete or cement
Impoundments are enclosures of water
I would go with 4 that's what makes the most sense to me, and i just learned about this last year so... I hope this helps good luck..
Anything that is considered alive must exhibit ALL 7 characteristics of life. A virus may show some characteristics, but it does not show all, so therefore, its not alive.
Answer:
Because it uses a carrier at the cell membrane
Explanation: