Which of the following involves the removal of phosphorous and nitrogen from sewage?
A. secondary sewage treatment
B. primary sewage treatment
C. tertiary sewage treatment
D. activated sludge sewage treatment
Answer: C
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To spear a fish with a regular spear, compensate for refraction and throw your spear
A. directly at the sighted fish. B. above the sighted fish. C. below the sighted fish. D. none of the above
Government subsidies to fishing fleets
a. promote overfishing b. promote the reduction of aquatic biodiversity c. promote overfishing and reduction of aquatic biodiversity d. reduce the use of bottom-trawling harvests e. are currently less than $100,000 per year
A low, lumpy cloud layer that appears in rows, patches, or rounded masses is classified as which of the following cloud types?
A. stratocumulus B. stratus C. altocumulus D. nimbostratus
While seasonality can affect humans, humans cannot affect seasonality
Indicate whether the statement is true or false