Fortunately for life, oxygen levels in the atmosphere have been stable over Earth’s history
a. True
b. False
False
You might also like to view...
What are some of the characteristics of European CBDs?
What will be an ideal response?
What is the heat source for hydrothermal activity on land?
A)earthquake faults only B)recent or current volcanic activity only C)deep heat in Earth's interior only D)earthquake faults and recent or current volcanic activity E)recent or current volcanic activity and deep heat in Earth's interior
Which school of economics assumes that the potential for economic growth is essentially unlimited and is necessary for providing profits for businesses and jobs for workers?
A. classical B. neoclassical C. capitalistic D. ecological E. socialistic
A firm that sells its products primarily to consumers outside its settlement is a
A) basic industry. B) functional classification. C) nonbasic industry. D) primate city. E) consumer service.