Choose the three factors which are considered when deciding whether to extract a metal from its ore.
a. How easy it is to extract the metal from its ore.
b. How much metal the ore contains.
C. The reactivity of the metal.
d. The melting point of the metal.
e. The changing demands for a particular metal.
.
f. The colour of the metal ore.
I need help now pleasee

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

the answers are

c and c