This is a sovereign state that comprises an urban area and the surrounding countryside.

A) rural-state
B) nation-state
C) city-state
D) primate-state
E) homogeneous state


Ans: C) city-state

Environmental & Atmospheric Sciences

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The amino acid lysine is shown below. What functional group must be removed in order to produce cadaverine (1,5-pentanediamine)

A. Lysine is 1, 5-pentanediamine. Nothing has to be removed. B. One amino group must be removed and replaced with a hydrogen. C. The carboxyl group must be removed and replaced with a hydrogen. D. The hydrogen (shown) must be removed and replaced with an amino (NH2) group.

Environmental & Atmospheric Sciences

Different versions of SQL are used in ArcGIS.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

The ability of an ecosystem to replenish itself leads to

A) sustainability. B) decreasing consumptive use. C) the conversion of ecosystem capital from one form to another. D) increasing natural resources but declining ecosystem capital.

Environmental & Atmospheric Sciences

Who made the first clear statement of the law of superposition? When?

A) John Wesley Powell, nineteenth century B) Nicolaus Steno, seventeenth century C) William Smith, eighteenth century D) John Stuart Priestly, nineteenth century

Environmental & Atmospheric Sciences