Which of these is part of a physical system?

a.
hurricanes

b.
fishing industries

c.
regions

d.
boundaries

Which of the following statements is true? a)free trade causes contraction of the export-oriented sector. b)free trade causes contraction in the import-competing sector. c)free trade restricts consumption choices of the domestic consumers. d)all the domestic producers benefit when a country engages in free trade.

Which at first gave the south an edge in the civil war? a. a better-equipped army b. the invention of ironclad ships c. the drafting of slaves into the army

Which label identifies the step labeled w?