What is the primary role of a plant's roots?

The primary role of a plant's roots is to absorb water and nutrients from the soil. Roots extend into the ground, where they can access moisture and essential minerals that are vital for the plant's growth and development. This function is crucial because water is necessary for photosynthesis, which produces energy for the plant, and nutrients are needed for various biochemical processes and to build its structure.

While roots may play minor roles in anchoring the plant or storing food, their main function is focused on hydration and nutrient uptake, which are fundamental to the plant's health and productivity. The other options, such as photosynthesis, producing flowers, and providing shade, are tasks primarily carried out by other plant parts, like leaves and stems. Therefore, roots are essential for the foundational processes that support the entire plant.