Of earth's four overlapping spheres, which of the following doesNOT inviolve material above earth's surface?
A) atmosphere
B) lithosphere
C) biosphere
D) hydrosphere
Ans: B) lithosphere
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At the beginning of the Proterozoic, Earth’s atmosphere was mostly ____
a. oxygen b. nitrogen c. carbon dioxide d. water vapor e. argon
Australia and New Zealand's language policies differ today in that Australia
A) emphasizes the English language while New Zealand gives a lot of support to linguistic diversity. B) was settled by English colonists but the original colonial language of New Zealand was French. C) recognizes Maori as an official Aboriginal language whereas New Zealand does not. D) has virtually no indigenous language speakers remaining. E) requires immigrants to take a dictation test whereas the New Zealand test is written.
Which of the following will the cause the rate of enzyme activity to first increase and then level off?
A) increasing the enzyme concentration B) increasing the substrate concentration C) increasing the temperature D) increasing the pH
An example of a rock/sediment type that could be an effective aquiclude is:
a. quartz sandstone. b. fractured granite. c. gravel. d. shale. e. graywacke.