Human population growth affects water pollution because
A. people consume too much freshwater.
B. more people produce more industrial waste that is discharged into streams and the ocean.
C. people take water out of the water cycle.
D. all of the above
Answer: B
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Religions that focus on appropriate behavior are classified as
A) orthopraxy. B) orthodoxy. C) fundamentalist. D) secular.
Respiration involves
A) the use of heat energy to react carbon dioxide with water to produce oxygen. B) a chemical reaction between carbohydrates and oxygen to produce carbon dioxide, water, and heat energy. C) a photochemical reaction involving carbon dioxide and water to produce carbohydrates and oxygen. D) a photochemical reaction involving carbon dioxide and oxygen to produce water and oxygen.
The basis for defining the length of a day is the fact that
A) Earth rotates on its axis in 24 hours; i.e., it rotates 15° of longitude per hour. B) Earth does not rotate; rather, it revolves. C) Earth rotates east to west. D) Earth moves through 365.25 days a year in its orbit about the Sun.
When stable air is forced to lift as it passes over a mountain range, the air may become saturated and condensation may occur. In this case, the air is
A) stable. B) unstable. C) conditionally unstable.