The correct answer to this open question is the following.
This relief program was dismantled by FDR after criticisms mounted that his programs were creating a class of Americans dependent on Government jobs was the Public Works Administration (PWA). It was intended to build highways, tunnels, and courthouses.
The New Deal was a series of programs created by President Franklin D. Roosevelt when he became President of the United States in 1933. These programs aimed to help the American citizens that were living under a harsh economic situation due to the Great Depression. However, Republicans and many people critiqued some programs because they thought that Roosevelt's programs were creating a class of Americans dependent on Government jobs
The answer is: his study does not qualify as an experiment. For the study to be an experiment, Dr. Kline would have to manipulate the independent variable in a group (for example, apply a certain treatment) and also have a control group to which he doesn’t apply such treatment.
In this case, the study is an observational study because he only observed the subjects that were in the zoo that morning and measured the variable of his interest, that is the environmental attitude of the visitors, he did not apply a certain treatment to the group nor manipulate any variable.
The situation where the national debt decrease is when there's a budget surplus.
<h3>What is a budget?</h3>
It should be noted that a budget simply means the document that's illustrates the expenditure and revenue.
In this case, the situation where the national debt decrease is when there's a budget surplus.
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