The color of certain genetically identical hydrangea flowers ranges from blue to purple to pink, depending on the level of aluminum in the soil. In which of the following types of soil is aluminum less soluble, and the flowers pink?
A) Silty soils
B) Clay soils
C) Peaty soils
D) Saline soils
E) Alkaline soils

Question

Quizplus · Accepted Answer

Aluminum is less soluble in alkaline soils, which results in hydrangea flowers turning pink due to the reduced availability of aluminum for uptake by the plants.

The Color of Certain Genetically Identical Hydrangea Flowers Ranges from Blue