Question

which statement is one of fact supporting how ph and flower color are related?
the flower color can be changed by altering the ph of the soil.
acidic soil produces pink flowers and neutral or slightly basic soil produces deep blue flowers.

Explanation:

The statement describes how soil pH (acidity/alkalinity) affects flower color, which relates to plant biology and the chemical processes in soil - plant interactions. This falls under Biology (a subfield of Natural Science) as it involves plant physiology and environmental influences on plants.

Answer:

The statement supports the relationship between pH (soil acidity/alkalinity) and flower color, showing how altering soil pH changes flower color (acidic soil: pink flowers; neutral/basic soil: deep blue flowers), relating to plant - soil chemical and biological interactions.