To determine a factual statement supporting how pH and flower color are related, let's analyze the relationship between soil pH and flower color.
1. Given Fact:
- The flower color can be changed by altering the pH of the soil.
2. Experimental Evidence:
- An experiment growing 20 hydrangeas with soil pH of 4.5 (acidic) resulted in different flower color compared to soil pH of 7.0 (neutral).
3. Observations:
- Acidic soil (pH = 4.5) produces pink flowers.
- Neutral or slightly basic soil (pH = 7.0) produces deep blue flowers.
From this information, we observe:
- Changing the pH of soil can affect the color of flowers. Specifically, hydrangeas grown in acidic soil (pH around 4.5) tend to produce pink flowers, while those grown in neutral or slightly basic soil (pH around 7.0) tend to produce deep blue flowers.
Combining these points, the supporting statement is clear:
The flower color can be changed by altering the pH of the soil.
Thus, this is a factually supported statement showing how soil pH affects flower color.
