<span>The four most common soil erosion prevention methods are vegetation, geo textiles, mulch, and retaining walls. Vegetation: The simplest and most natural way to prevent erosion is through planting vegetation. Plants establish root systems, which stabilizes soil and prevents soil erosion.</span>
Answer:
The Tonkawa are known to have worn breastplates, chokers and ear pendants made with hair pipes. Breechclout, leggings and moccasins completed their warm weather clothing. A buffalo robe would be added on top for cold weather.
Explanation:
Artists from the Tonkawa tribe are known for crafting beautiful hide paintings and copper jewelry. 3. The Tonkawas traded many times with tribes of the Southern Plains & the Southwest Plains. They enjoyed traded items made of buffalo with tribes such as the Caddo and Pueblo Indians.
The null hypothesis makes a claim about population parameter. A null hypothesis is a statement about the value of a population parameter. So the correct answer is (a).
An example of a null hypothesis is one that asserts that no statistical significance can be found in a collection of provided observations. A hypothesis is tested using sample data to determine how plausible it is. It is represented as H0 and is occasionally referred to as simply the "null." To determine if a theory regarding markets, investment methods, or economies is correct or wrong, quantitative analysts employ the null hypothesis, often known as the conjecture. The alternate theory contends that there is a distinction.
Therefore correct answer is (a).
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