Answer:
Placer mining
Explanation:
Placer mining can be less damaging to the environment than surface mines, as the sediment is returned to the water after the minerals have been extracted.
Answer:
<h3>Unloading </h3>
Explanation:
because it only defines a thing taken from a place. It was actually generally solid and other materials
The right answer is ionic compounds.
Ionic compounds do not contain distinct molecules but interacting ions
electrostatic.
An ionic compound is formed by the association of positive and negative ions.
An ionic compound is electrically neutral.
Here's an example : Calcium chloride
Writing of the ionic compound: CaCl2
Positive ion: calcium ion Ca ++
Negative ion: chloride ion Cl-
<span>A.) It prevents sunlight from reaching aquatic life below the water’s surface.
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