Question

define the term \heterogeneous mixture.\
select one:
a mixture where the components cannot be differentiated by sight alone
a mixture where the components can be differentiated by sight alone
any two or more compounds or elements that are physically intermingled

Explanation:

To define a heterogeneous mixture, we recall that in chemistry (a subfield of Natural Science), a heterogeneous mixture has visibly distinct components. The first option describes a homogeneous mixture (components not distinguishable by sight). The third option is the general definition of a mixture (not specific to heterogeneous). So the correct option is the one where components can be differentiated by sight.

Answer:

B. a mixture where the components can be differentiated by sight alone