The backyard dog is fast becoming a thing of the past. Decades ago, it was common for dogs to live their entire lives outside in suburban and urban yards. But as our knowledge of canines has evolved, we've learned that staying outside 24/7 can be hazardous for a dog's health.ecades ago, it was common for dogs to live their entire lives outside in suburban and urban yards. But as our knowledge of canines has evolved, we've learned that staying outside 24/7 can be hazardous for a dog's health.
Rear-wheel drive (RWD) typically places the engine in the front of the vehicle and the driven wheels are located at the rear, a configuration known as front-engine, rear-wheel drive layout (FR layout). The front mid-engine, rear mid-engine and rear engine layouts are also used.
Generally, the terms 4WD(Four-Wheel Drive) and AWD (All Wheel Drive) both describe vehicles in which engine power is transmitted to all four wheels, unlike normal vehicles in which only two wheels receive torque from the engine.n the other hand, usually a 4WD transmits almost all of its engine power to the rear wheels. The second speed option available in 4WD allows to split the engine power equally between front and rear wheels. Share your insights about 4WD/AWD vehicles.