What is the greatest source of oxygen in deep water?
A) The respiration from bacteria
B) The lack of large quantities of organisms
C) Chemosynthesis
D) Polar waters that have sunk from the surface
D
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We lose 5 to 7 million hectares of productive cropland per year to ________
A) abandonment, feralization, and other factors B) forest replanting and regeneration C) recreational land use D) soil degradation E) soil conservation efforts
Eddies are found at all depths of the oceans.
Answer the following statement true (T) or false (F)
"If domestic gas prices rise to $5 per gallon, conservation will increase, alternative fuels will be developed, and energy efficiency and our quality of life will improve." This view is consistent with ________ economics
A) neoclassical B) social C) anarchic D) environmental E) subsistence
Which of the following best matches the description?Compound with a low number of hydroxyl ions or low pH.
A. ion B. kinetic energy C. neutron D. proton E. isotope F. entropy G. nucleus H. potential energy I. pH J. latent heat K. combustion L. base M. enzyme N. acid O. respiration P. photosynthesis Q. electron