Final answer:
Improving water management might have reduced the effects of the Dust Bowl by leading to better irrigation practices and soil moisture conservation, as exemplified by historical strategies like the Agricultural Adjustment Act. The correct option is D.
Step-by-step explanation:
The Dust Bowl was a significant environmental disaster that resulted mainly from poor farming practices, overcultivation of farmland, and severe drought conditions. Of the options provided, the one that might have reduced the effects of the Dust Bowl is improving water management.
This would have included better irrigation practices and strategies to conserve soil moisture.
The Roosevelt Administration tackled these issues during the Dust Bowl by implementing programs such as the Agricultural Adjustment Act, which paid farmers not to over-plant and taught them new farming methods to prevent overuse and promote soil conservation. The correct option is D.