Final answer:
Aerobic exercise includes endurance exercises requiring minimal skills or physical fitness, such as walking or water aerobics.
Step-by-step explanation:
Aerobic exercise, also known as cardio, is a type of exercise that requires minimal skills or physical fitness to perform. It includes activities such as walking or water aerobics. These exercises are endurance exercises that can be performed for extended periods of time. They increase cardiovascular endurance and are beneficial for overall health and fitness.