How can a scientist safely tell whether an unknown solution is salt in water or sugar in water?
a.
by tasting the solution
b.
by smelling the solution
c.
by testing the electrical conductivity of the solution
d.
by filtering the solution

Which of the following statements is false? a. package access is rarely used. b. use the access modifier package to give a method or variable package access. c. classes in the same source file are part of the same package. d. if a program uses multiple classes from the same package, these classes can access each other's package access members directly through references to objects of the appropriate classes, or in the case of static members, through the class name.