Final answer:
First-degree burns cause the skin to blanch and are superficial, second-degree burns result in raw and moist blistering skin, and third-degree burns cause the skin to become white and leathery and need medical attention.
Step-by-step explanation:
The question involves identifying the characteristics of different types of burns. For first-degree burns, the symptom is that the affected skin may blanch (turn white) when pressure is applied and then return to red when the pressure is removed. These burns only affect the epidermis and typically heal on their own within a few days. A second-degree burn is more severe, affecting both the epidermis and a portion of the dermis resulting in raw and moist skin, often accompanied by painful blistering. Finally, third-degree burns penetrate the full thickness of the skin, often leaving the affected skin white and leathery due to the destruction of tissue. These burns can affect nerve endings and require medical attention for the possibility of healing.