Native Americans Planted Crops of Corn, Squash, and Beans

question 7

Multiple Choice

Native Americans planted crops of corn, squash, and beans. The beans increased the level of nitrogen in the soil. The corn required high levels of nitrogen and provided a support for the beans to climb and receive more sunlight. The large leaves on the squash shaded the ground and limited weed growth. This agricultural method

• A) created wildlife corridors.
• B) increased the number of pests in the fields.
• C) caused mass extinctions.
• D) reduced the ecosystem services.
• E) is a type of sustainable agriculture.

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Definitions:

Treatment Component

An element or aspect of a therapeutic intervention that contributes to its effectiveness in addressing particular health issues.

Procedural Considerations

The aspects of planning and conducting research that involve the detailed methods and steps necessary for data collection, analysis, and interpretation.

Dependent Variable

The variable in a study that is expected to change as a result of variations in the independent variable.

Administration

In research contexts, it often refers to the management, organization, and supervision of the processes and procedures involved in conducting a study.