Base on the following climographs and insolation graphs. Letters represent a location where the climograph and insolation graph were recorded
Which location has the longest period of continuous darkness?
A. A
B. B
C. C
D. D
Answer: D
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A species' ecological niche is its
A. habitat. B. food supply. C. role in the ecosystem. D. length of survival. E. need for specialized food sources.
Preservation is
A) the sustainable use and management of natural resources. B) maintenance of resources in their present condition. C) invention and diffusion of new agricultural practices. D) breeding programs to rebuild endangered species. E) recycling natural resources.
The atomic mass number is equal to the sum of the
a. neutrons and isotopes b. neutrons and electrons c. neutrons and protons d. protons, neutrons, and electrons e. protons only
Biological nutrient removal ultimately converts most of the organic materials in wastewater into
A) oxygen, ammonia, and carbon dioxide. B) nitrogen, water, and carbon dioxide. C) sugars, vitamins, and minerals. D) proteins and carbohydrates.