Answer:
height is dependent variable
age of redwood is Independent variable.
Explanation:
Independent variables are those variables whose value does not gets affected by change in other variable.
dependent variable are those variable are those variables whose value does gets affected by change in other variable.
means that if there a change in value od one variable then the value of dependent variable also gets changed.
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Given
The height of a redwood (in meter) tree varies with age (years).
Here height of redwood will change if age of redwood changes.
hence, height is dependent on age and hence going by definition of dependent variable
height is dependent variable
In the problem age does not change with height of the tree and it is also given that age varies with any other attribute.
hence change in value of age does not depend on any variable and hence
age of redwood is Independent variable.