Agent Orange

• How many people died in Vietnam because of Agent Orange?
• How many birth defects were caused by Agent Orange?
• Was Agent Orange really necessary?

Fire

• How was fire first discovered?
• Is fire used more for evil or for good?
• How many forest fires have occurred in America over the past year? Decade?
• How many people still use fire to heat their homes?
• How many people still use fire as a source of light?
• Fire is one of the four classical elements along with wind, water, and earth.
• The four classical elements correspond to the modern-day states of matter. Wind, water, and earth correspond to gas, liquid, and solid respectively while fire corresponds to plasma.
• Wildfires are primarily caused by lightning strikes, underground coal fires, volcanic activity, and spontaneous combustion.
• Heavy winds can help fires spread more rapidly by brining in huge amounts of oxygen which is needed for combustion.