Final answer:
Coconut oil, palm oil, and shea butter are solid at room temperature and are of plant origin, with a high content of saturated fatty acids, as opposed to olive oil and sunflower oil which are liquid due to unsaturated fatty acids.
Step-by-step explanation:
Three solid oils that are of plant origin include coconut oil, palm oil, and shea butter. These oils are characterized as solid at room temperature due to their high concentration of saturated fatty acids, which tend to be straight chains that pack closely together. Olive oil and sunflower oil, while derived from plants, are liquid at room temperature and are rich in unsaturated fatty acids. These fatty acids have one or more double bonds that create kinks in the chains, preventing them from packing tightly. Fats and oils serve as an important source of energy and provide essential fatty acids necessary for health, but the type you choose and the amount you consume is important in order to balance caloric intake and nutritional benefit.