The main function of plant roots is to anchor the plant to the soil, providing stability and support. Additionally, roots are crucial for the absorption of water and essential nutrients from the soil. They can also store energy and carbohydrates, supplying the plant with resources during periods of growth or environmental stress. Furthermore, roots play a role in soil aeration and preventing soil erosion. The root system varies among plant species, adapting to their specific needs and the environments in which they grow.