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?
A B C D
gravitropism photosynthesis geographic location environmental conditions
Question: 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?
(A) gravitropism
(B) photosynthesis
(C) geographic location
(D) environmental conditions

Answer: (D) environmental conditions
Answer: (B) photosynthesis
Question: 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?
(A) gravitropism
(B) photosynthesis
(C) geographic location
(D) environmental conditions
Answer: (D) environmental conditions