Answer :
Final answer:
The lizard gains heat through conduction from the rock, radiation from the sun, and convection from warm air currents.
Explanation:
The lizard sitting on a rock in the sun is gaining and losing heat through the processes of conduction, radiation, and convection. Conduction occurs as the lizard makes direct contact with the warm rock, allowing heat to transfer to the lizard's body.
Radiation is the emission of electromagnetic "heat" waves from the sun to the lizard. Meanwhile, convection currents of air may carry warm air from the surrounding environment to the lizard's body, or remove heat from the lizard if the surrounding air is cooler.
Notably, evaporation is not a significant factor in this scenario since the lizard is not mentioned to be sweating or losing heat through liquid evaporation, which is more typical of mammals.
