Command used to combine one or more queries in a union query

Express the two values in the previous exercise as polynomials.

What will be an ideal response?

Many years ago a scientist pointed out that everything a person or object touches is affected by that contact. And when departing the scene, the object will take a part of the scene with it. This idea was accepted a fact and became known as the _________________.

a. Picard Principal b. Residual Contact Exchange c. Entropy d. Locard's Exchange Principle