Answer: exosystem
Explanation: In ecological system theory, exosystem contains environmental elements that have a profound influence on a child's development, even though that child is not directly involved with them.
<span> It refers to five Native American nations—the </span>Cherokee<span>, Chickasaw, </span>Choctaw<span>, Creek (Muscogee), and </span>Seminole<span>.</span>
Crops such as wheat or corn absorb a large amount of nutrients from the soil. To remedy this, farmers plant crops such as rye, buckwheat, radishes, turnips and other cover crops.
Class system is the distribution of scarce resources and rewards that is determined on the basis of achieved status.