The variable that a scientist observes to change while conducting an experiment is called the responding variable
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The responding variable (also called dependent variable) is the variable that a scientist observes to change while conducting a scientific experiment. The responding variable depends on the independent variable (also called manipulated variable). When the independent variable is changed by the scientist, its effect on the responding variable is usually observed and recorded. Responding variables can be observed (such as taste) or measured (such as length) in an experiment.
They changed over time by finding the right ingredients such as iron, metal, or steel to forge different creations. They took so slowly because no one was discovered the things to make stone tools.
It was meant to warn Americans against potential peril in the wake of the 1890 census which coldly stated that there was no longer unexplored wilderness in America (sans Alaska), that there was no longer a contiguous frontier, there was also not an official statement saying that the frontier had been closed because it was merely hearsay.
The answer is: state governments
When the immigrants come into united states, they will settle on the states and will most likely have to settle to find a job in that states.
Because of this, the number of employment in that states could be threaten if the increase in the amount of workers far surpassed the increase in the amount of job opportunities. The state government would be the one that is responsible to bear such challenge.
