Answer:
1 factor deffer which is independent variable which is controled in control groups
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I believe this would be true
The freezing temperature of water depends on the amount of dissolved salts salinity. Salt is expelled as the ocean water freezes to form sea ice. This creates dense brine that sinks and flows down the continental shelf of Antarctica to form Antarctic Bottom Water the densest water in the open ocean.
The following physical properties of minerals can be easily used to identify a mineral:
Color.
Streak.
Hardness.
Cleavage or Fracture.
Crystalline Structure.
Diaphaneity or Amount of Transparency.
Tenacity.
Magnetism....ect
