It causes a much more gradual decrease in hardness with position from the quenched end.The presence of alloying elements (other than carbon) does not influence on the shape of a hardenability curve.It causes a much more rapid decrease in hardness with position from the quenched end.
The answer would be: cell wall, a large central vacuole, and plastids such as chloroplasts.
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Answer:
Putting a parking garage on an unused lot inside a city- A.