Napalm is an organic compound used to thicken gasoline for use as an incendiary in flamethrowers and firebombs. The thickened mixture burns more slowly and can be propelled more accurately and farther than gasoline. When it comes in contact with surfaces, including the human body, it sticks and continues to burn. It was developed and first used by the US in World War II. Its use in the Vietnam War became highly controversial. “Napalm” is a combination of what two words? Discuss