What are the elements that contribute to vehicle skidding?

1. The old age of the vehicle.
2. Road visibility conditions.
3. Correct answer: Every element that prevents direct contact between the tire and the roadway, such as: water, oil, mud, gravel, etc.
4. Any element which affects the driver's alertness.

WhyAnything that keeps the tire from touching the road helps cause a skid: water, oil, mud, gravel. The age of the car is not the main thing.