What is biochemical oxygen demand?
A. amount of oxygen required to decay a certain amount of organic matter
B. method by which settled organic matter is returned to aeration tanks
C. a necessary material that is in short supply
D. None of these are correct.
Answer: A
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First describe the two main theories that describe charge separation. Then describe the formation and movement of a stepped-leader, return strokes, and dart leaders
What will be an ideal response?
Beer bottling is an example of a
A) perishable industry. B) specialized industry. C) bulk-gaining industry. D) communications-oriented industry. E) labor intensive industry.
Which underdeveloped world region lacks a substantial agricultural base, which means many food products must be imported?
A) East Asia (excluding Japan) B) Latin America C) Middle East and North Africa D) South Asia E) none of the above regions rely on food imports
"Geo-" refers to "Earth," and "-graphy" means "____________________."
Fill in the blank(s) with correct word