A sandblasted rock differs from a non-sandblasted rock in various aspects, including a change in texture and color of the rock's surface.
Sandblasting is a process in which a high-pressure stream of sand or other abrasive material is used to remove material from the surface of an object.
The most noticeable difference between a sandblasted rock and one that hasn't been sandblasted is the texture of the surface. A sandblasted rock will typically have a rough, pitted surface, while an unsandblasted rock will have a smoother surface.
Sandblasting can also change the color of a rock. If the rock has a layer of surface material that is a different color than the underlying rock, sandblasting can remove the surface layer and expose the underlying rock.
Therefore, a sandblasted rock would differ from a rock that hasn't been sandblasted in several ways such as change in texture and color of a rock's surface, creating a rough, pitted texture and exposing the underlying rock.
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B. The balloons rise at the same rate. Both balloons are the same size.
C. The warm balloon expands and rises. The cold balloon shrinks and sinks.
D. The cold balloon expands and rises. The warm balloon shrinks and sinks.
The correct answer is option C, that is, the warm balloon expands and rises, and the cold balloon shrinks and sinks.
It is known from the ideal gas equation, that PV = nRT
Here, P is pressure, V is volume, n is the number of atoms in gas, R is gas constant, and T is temperature.
From the equation, it is clear that the volume of balloon is directly proportional to the temperature. It signifies that at constant pressure when temperature elevates than at that time volume of the balloon will increase and when temperature reduces the volume of balloon will decrease.
Thus, the volume of warm balloon will increase because of which its density increases and it can rises easily as a less dense substance can easily rises in air in comparison to more dense gas or substance. Thus, the cold balloon shrinks and sinks.
B: To determine the color of the minerals
C: To classify minerals
D: To identify minerals
and D. to identify minerals
Answer: D: Identify minerals
Explanation: If you can figure out the chemical makeup or the use of a mineral, you can identify what kind of mineral it is.