Which one of the following statements about the carbon, phosphorus, and nitrogen cycles is true?
A) The major source of carbon used by plants is the carbonate rocks and soil.
B) The major source of nitrogen used by plants in photosynthesis is the atmosphere.
C) Phosphorus has no atmospheric component.
D) Soil bacteria drive the phosphorus cycle.
C
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Which of the following is NOT one of the critical and interdependent "three Es" of sustainable development?
A) entrepreneurialism B) environment C) economy D) social equity
Neighborhood decay has been increasing in American cities for the past several decades
Indicate whether this statement is true or false.
Map algebra is limited to the use of a single layer as the input.
Answer the following statement true (T) or false (F)
Some major faults acting for millions of years have offset rock layers horizontally by hundreds of kilometers.
Answer the following statement true (T) or false (F)