Answer:
The rock will sink.
Explanation:
The density of water is about 1 g/cm cubed, the rock being more dense will sink in water.
Answer:

Explanation:
The resistance of a conductor is directly proportional to its length and is inversely proportional to its cross-sectional area, this dependence is given by:

is the material's resistance, L is the legth and A is the cross-sectional area.
For the first and second coils, we have:

For the third and fourth coils, we have:

If it soaks into the earths surface it becomes ground water
Rocks, earth aging, fossils
Answer:
It is Potassium and iodine