Wood from an ancient stump has a ratio of carbon-14 to carbon-12 that is one-eighth that of new wood. About how old is the stump? (Carbon-14's half-life is 5730 years.)
a. 17,190 years
b. 11,460 years
c. 5730 years
d. 2865 years
a
You might also like to view...
What action is responsible for the heating of Saturn's interior?
a. rapid rotation on its axis b. zero inclination to its axis of rotation c. convection currents of liquid hydrogen d. falling droplets of helium releasing energy e. rising magma from hot spots found on its surface
Deuterium abundance suggests that normal matter makes up only 3-4% of the critical density
Indicate whether the statement is true or false
When the midpoint of the face of the Sun appears to be on the horizon, where is the actual midpoint from the point of view of the observer?
a. above the horizon at sunrise and below the horizon at sunset b. on the horizon c. below the horizon d. above the horizon
The formula for the hydronium ion is ______________
A. H? B. H?O? C. H?O? D. H?O?