The half-life of carbon-14 is
A. around 5,700 years.
B. around 2,000,000 years.
C. close to 1,000 years.
D. infinite.
A
You might also like to view...
In order to confirm that Neandertals had built a bear shrine in Drachenlock Cave, archaeologists would need to find __________
A. cave paintings of bears B. small chambers in the far recesses of caves that contained "religious objects," primarily clay figures of bears C. a purposeful arrangement of bear skulls in the cave D. clear associations between Neandertal tools and the bear bones
According to the text, how many Americans were living in poverty (defined as an annual income of $22,314 or less per family of four) in 2010?
a. 6.4 million. b. 13.7 million. c. 37.6 million. d. 46.2 million. e. 79.8 million.
Describe the capitalist world economy. Cite when it originated, and list its features.
What will be an ideal response?
Which of the following agricultural practices involves the tending of plants or animals during the growth period?
A. Husbandry B. Maintenance C. Harvesting D. Propagation