Which zone in the ocean contains enough light for photosynthesis??

Traditional barriers to international trade have included

A) low taxes on imports. B) making domestic goods more expensive. C) eliminating quotas on imports. D) requiring licenses for importers. E) strong domestic and international demand.

The oceanic tides rise and fall in a rhythmic cycle that takes place roughly once every ________ hours

A) 4 B) 6 C) 12 D) 18 E) 24

What deals with the production, distribution, and consumption of goods and services to satisfy people's needs and wants?

A. economics B. capitalism C. the community D. the financial market E. a socialistic system

Assuming an environmental lapse rate of 6.5 degrees per 1,000 meters and a surface temperature of 20 degrees centigrade, at what elevation would freezing temperatures be found?

a. 2,000 m. b. 2,750 m. c. 3,333 m. d. 4,000 m.