<span>First a science fair requires projects. They should be a diverse group of experiments and demonstrations. Second, the students should be present and close by their project so they can explain their work. The third important component of a successful Science Fair is community mentors to act as judges. The judges should interact with the students, make fair decisions, and spark interest in science.</span>
Answer:
This is an example of:
B. lowering prices for customers.
Explanation:
<u>In a competitive market, it is common for companies to try and offer a cheaper product. In most situations, being cheaper means the product has more chances of attracting customers when compared to expensive ones. A way to make a cheaper product is by decreasing production costs using cheaper materials, as is mentioned in the question.</u> Of course, the product will have its price lowered, but its quality may also decrease with the use of a cheaper material. Anyway, the situation described is an example of lowering prices for customers.
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When a employment selection instrument is related to job success, the instrument is said to have validity.