Why is municipal wastewater sludge considered problematic?

A) it is too rich in nutrients
B) it sometimes contains heavy metals
C) it has no known use
D) it has a high biochemical oxygen demand


B

Environmental & Atmospheric Sciences

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Which of the following is a pure substance?

A. orange juice B. baking soda C. duct tape D. salt water E. cooking oil

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I an oceanic plate-continental plate collision, denser continental crust dives beneath oceanic crust

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

What substances are being overused in feedlots causing a reduction in the effectiveness of antibiotics used in treating infections in humans?

What will be an ideal response?

Environmental & Atmospheric Sciences

Which of the following ecosystems accounts for 21.0% of the world marine fishery?

A) Coastal and coral systems B) Nontropical shelves C) Open ocean D) Tropical shelves E) Upwellings

Environmental & Atmospheric Sciences