To be considered a source of water pollution, the source must include a chemical. Please select the best answer from the choices provided
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it is true because i just took the test and i did research on it

Explanation:

i study this and because i did research

the answer is true.

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.