What two elements formed first?
A) helium and hydrogen
B) helium and oxygen
C) protons and neutrons
D) electrons and protons
E) hydrogen and oxygen
A
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The Neolithic Revolution is most clearly seen in human culture today in our use of
A) natural wood products from national forests. B) furs from trapped wild animals. C) rivers for navigation and water supplies. D) modern agriculture to raise food crops.
Suppose you were standing on a solid surface when P-waves from a nearby earthquake arrived and you could feel them. What ground motion sensation would you feel?
A. The ground would move horizontally beneath you, shaking you side to side. B. The ground would move both vertically and horizontally at the same time. C. The ground would move vertically beneath you, moving you up and down.
If you hold the end of an iron rod over a fire, your hand will become warm because of heat being transferred by ____
a. convection b. advection c. conduction d. radiation
In Vermont, most of the land is currently being used for sheep farming.
Answer the following statement true (T) or false (F)