If you've noticed that your car has thick smoke coming out of the exhaust pipe, it may be a sign that your engine needs some attention. Just like you can examine an animal's stool to get an idea of its health, you can pay attention to the quality of your car's exhaust to get an idea of what's going on inside the engine.
The word sulfur has old roots. It comes from the ancient Latin word for sulfur, sulpur, which later changed to sulphur, perhaps under the influence of the Arabic word for yellow, sufra.
How did Mars get its name? A: Because of their militant nature, the Romans named the brightest red point of light in the night sky after their patron god of war. It only makes sense to give him a place of honor then, but Mars has had many names throughout the course of human civilization.