The flower petals of a hydrangea plant change color as the acidity of the soil changes. The color changes are directly related to which factor?

Responses

gravitropism

gravitropism

photosynthesis

photosynthesis

geographic location

geographic location

environmental conditions

The acidity of the soil

The color changes of the flower petals of a hydrangea plant are directly related to the environmental conditions.

The factor that directly relates to the color changes of the flower petals of a hydrangea plant is the acidity of the soil.