Which essential gas is often in an unusable form in the ocean and atmosphere?
A) Nitrogen
B) Oxygen
C) Carbon dioxide
D) All of these choices
A
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International efforts to protect biodiversity have included efforts to halt "bioprospecting," the corporate practice of
A) intentionally reducing the varieties of fruits and vegetables found in the grocery store. B) replacing traditional and native species of plants with crops for export. C) overharvesting non-traditional crops like hemp and seaweed from public areas. D) exploiting indigenous knowledge of medicinal plants for commercial purposes.
Where could we expect to find back-thrusts?
What will be an ideal response?
In the United States since 1920, many situations have changed because of the move to urban areas. What is one of these changes?
A. substandard housing B. better working conditions C. increased incidence of infectious diseases D. increased water quality problems E. poorer air quality
Which of the following activities use the greatest amount of water in the United States?
A. electrical generation and industrial B. industrial and irrigation C. industrial and municipal supply D. irrigation and electrical generation E. irrigation and municipal supply