Science
What do plants produce through photosynthesis?
Oxygen
What does the "c" in the equation "e=mc2" stand for?
Speed of light
What sense is most closely linked to memory?
Smell
The effect produced when sound is reflected back is known as what?
An Echo
he effect produced when sound is reflected back is known as what?
A, C, G, and T
Astraphobia, Brontophobia, Tonitrophobia and Ceraunophobia are all the irrational fear of what?
Lightning and thunder
What are the three primary ingredients of gunpowder?
Sulfur, saltpeter and charcoal