the relationship between two variables is positive when
and the relationship between two vanables is negative when
o a. one vanable increases and the other decreases one vanable decreases and the other increases
ob. one vanable increases and the other increases, one vanable decreases and the other decreases
oc. one vanable increases and the other increases one vanable increases and the other decreases
od. one vanable decreases and the other increases one vanable increases and the other increases

The relationship between two variables is "positive when  one variable increases and the other increases" and the relationship between two variables is "negative when one variable increases and the other decreases".

Option C

Explanation:

"Variables" are the characteristics or properties that change or could be changed and responsible for variations in results. A variable is any factor, trait, or condition which occurs in differing amounts or types, usually independent, dependent, and controlled are kinds of variables preferred in any stream.

"Positive correlation" occurs when two variables move in same direction, for an instance like when one variable increases and the other increase or when one variable decrease and the other decreases. While "negative correlation" take place when two variables move in different directions like when one variable increases and the other decreases or when one variable decreases and the other increases.

chemicals that are toxic to plants

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