Secondary sewage treatment is distinguished form primary sewage treatment by the ________
A) addition of bacteria to process organic contaminants
B) aeration of liquid effluent following chlorination
C) chlorination of the liquid effluent
D) removal of inorganic nutrients from the liquid effluent
E) separation of the suspended solids from the liquid effluent
C
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Which of the following factors shape a firm's location?
A) labor B) land C) capital D) all of the above E) only land a capital
An object weighs 30 N on Earth. A second object weighs 30 N on the Moon. Which has the greater mass?
A) the one on Earth B) the one on the Moon C) They have the same mass. D) not enough information given
The intensity of regional metamorphism may be recognized by:
a. index of recrystallization. b. index fossils. c. index minerals. d. index polymorphs. e. index cards.
The unnatural and human-induced change that destroys the resilience and biological potential of an arid and semi-arid ecosystem, and that has been quite common in the Sahel region for the last several decades, is called __________
Fill in the blank(s) with correct word