How is a ratio used to describe change a it represents a. relationship between two values numerically b. it represents a relationship between two values on a scale c. it represents a relationship between two values in a picture d. it represents the relationship between two values graphically

Ratio used to describe a change that represents relationship between two values numerically.

Therefore, the correct answer to the question is option A.

Explanation:

Ratio is a relation between two numbers. This relationship is represented numerically. The relationship is not represented graphically or by a picture manner. Also, it is not the relationship which is represented on a scale.

Hence ratio is relationship which is represented numerically. The ratio is defined as a part of something in the whole. By ratio we can also calculate the parts whichever is needed.  

genetic variation will increase because of a new habitat and food source.

explanation: