For what time span does radiocarbon apply?

What will be an ideal response?


The half-life of carbon-14 is only 5730 years, so it can be used to date events as far back as 70,000 years.

Environmental & Atmospheric Sciences

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The concentration of ____________________ is close to 21 percent (by volume) in the upper stratosphere (the same concentration as in the trophosphere), but without proper breathing apparatus you would not be able to survive there

Fill in the blank with correct word.

Environmental & Atmospheric Sciences

Population growth is determined by ________

A) birth, death, and environmental resistance B) birth, death, and emigration C) birth, death, and net migration D) birth, death, and total fertility E) birth, death, and doubling time

Environmental & Atmospheric Sciences

Figure 23.16 Summarize the free-market economic system. 

What will be an ideal response?

Environmental & Atmospheric Sciences

Transform faults are areas of crustal

A. formation. B. subduction. C. accommodation and plate movement. D. destruction.

Environmental & Atmospheric Sciences