Step 1 : Introduction to the question "7. An important survival skill is knowing how to light a fire. Fire provides warmth, light, protection from predators and a psychological boost. Which of the following items could be used to start fire in a survival situation?"
...1. Flint and steel 2. All of these 3. Bow and drill 4. Ammunition A flint and steel works to produce a shower of sparks at over 5000 degrees even when wet. The bow and drill requires more practice and generates a "coal" through friction between soft and hard woods. Finally ammunition can be used when the bullet is removed from the cartridge case, the case plugged with cloth and the weapon is fired into some kindling or tinder. A lesser known but equally practical method of fire starting without matches is to use a car or aircraft battery and wire wool. The electrical current from the battery is passed through the wire wool causing it to glow red hot. If all these fail - just break out the zippo!