What are the three degrees of burns? how is each characterized?

first-degree burns: red, non blistered skin

second-degree burns: blisters and some thickening of the skin

third-degree burns: widespread thickness with a white, leathery appearance

answer; /// i believe that the correct answer is (c); ///when the lungs expand, they fill with air from the atmosphere;

i think he will be okay, id probably take the dog to the vet just incase