What is the best description of weathering? a. breakdown of rocks through mechanical or chemical processes. b. when rocks layers from horizontally. c. building up earth's surface through deposition. d. processes that make it difficult to determine the age of rocks.

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

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