Which aspect of food production most negatively affects human health?
A. conversion of grasslands to rangeland
B. erosion
C. fish kills
D. pesticide residues in water, food, and air.
E. desertification.
Answer: D
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Which of the following would best represent a clumped population distribution pattern?
A) a pod of 40 migrating gray whales in the Bering Sea B) pine trees within a pine plantation C) earthworms in the soil of a garden D) eagles nesting in the tallest trees in the Grand Canyon E) oaks planted on city streets
When ash combines with water, it can form _______________ with a consistency of wet concrete
Fill in the blank with correct word.
Heat is released when cloud droplets form.
Answer the following statement true (T) or false (F)
All of the following are mined from evaporite deposits except
A. quartz. B. halite. C. gypsum. D. phosphates.