What with the problems of low farm production, low farm income, and land blown away by dust storm?

One act was the Soil Conservation and Domestic Allotment act which paid farmers to plant crops that gave nutrients back into the soil, such as clover. This helped the depleted soil, rather than wheat and corn, which further exacerbated the problem.
There was also the creation of the Agricultural Adjustment Administration (AAA), which identified farmers that farmed certain crops and actually paid them to farm less of these crops. In doing so, they created artificial scarcity, which drove up the prices of the crops and gave the farmers more revenue.

White dwarf is very hot, but also very small and that is why it may appear dim.

Where is the map? explain the choices?