Carbon 14 is useful for archeological samples because it is effective back to approximately
____________________ years. Fill in the blank(s) with the appropriate word(s).
70,000
You might also like to view...
Hurricanes cannot form along the equator because ____
A) there isn't much water along the equator B) the Coriolis force is too small along the equator C) there are no feedback mechanisms along the equator D) it's too humid for the ocean water to evaporate
During the last glacial maximum
A) there were four main pulses of glaciation. B) Scandinavia was relatively ice-free. C) sea level was about 20 feet lower than now. D) higher latitude regions were drier than they are now.
Arizona dominates the U.S. copper mining industry. As a bulk-reducing industry, this would imply that
A) Arizona also dominates the concentration mills and smelter industry for copper. B) the concentration mills are likely located in the East where most of their customers are. C) the smelters are likely located in the East where most of their customers are. D) people in Arizona are primarily the end-users of the copper. E) all the commercial products made out of copper, such as electrical wiring, are manufactured in Arizona.
Continental locations attain their maximum temperature later in the summer than do marine locations, due to the differential rates at which land and water are heated
Indicate whether the statement is true or false