Final answer:
The two horizontal forces present as a car is pushed down the driveway are the applied force and air resistance.
Step-by-step explanation:
The two horizontal forces that are present as a car is pushed down the driveway are the applied force and the air resistance. The applied force is the force exerted by the person or object pushing the car, while air resistance is the force experienced by the car as it moves through the air. These two forces act in opposite directions and affect the car's motion.