The material used in photosynthesis that is obtained from the soil is water.

Here's why:

* Photosynthesis Equation: The basic equation for photosynthesis is:

* Carbon dioxide + Water + Light energy → Glucose + Oxygen

* Water's Role: Water is one of the key reactants in photosynthesis. It is absorbed from the soil by the plant's roots and transported to the leaves.

* Other Ingredients: The other key ingredient, carbon dioxide, is absorbed from the air through tiny pores on the leaves called stomata.

Let me know if you have any other questions about photosynthesis!