Orange juice is a mixture of several substances, including water, sucrose, and
citric acid. If a scientist studies samples of many brands of orange juice, which
finding is most likely?
A The samples contain the same substances in a variety of proportions.
B The water in each sample has a unique set of properties.
c The samples contain the same substances in a fixed proportion.

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f.