20:22duration 20 minutes 22 seconds
Insights to Foresights - The Case of the Log…
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20:13duration 20 minutes 13 seconds
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Dr. Gary Introduces the Primary, Secondary, and…
Dr. Gary Introduces the Primary, Secondary, and Tertiary Sectors of Economic Activity
Dr. Gary introduces the concept of sectors of economic activity as part of the discussion for Lesson 6 (Economic Activities) in GEO 151v, Human Geography. Primary, secondary, and tertiary sectors…