Considering all major biogeochemical cycles, the human input is ________
A) making major alternations in most cycles
B) insignificant
C) limited to the carbon cycle
D) never likely to be important
E) several times larger than the natural fluxes of mass and energy
Answer: A
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Which of the following is true about thin-plate splines for spatial interpolation?
A. The thin-plate splines method tends to produce steep gradients (overshoots) in data-poor areas. B. The thin-plate splines method produces a minimum-curvature surface. C. The thin-plate splines method produces smooth isolines. D. All of these are correct E. Both the thin-plate splines method produces a minimum-curvature surface and and smooth isolines.
Which of the following denaturing agents affects disulfide bonds?
A) detergents B) heat C) heavy metals D) urea
Earth's climate system is the result of interaction of temperature, atmospheric pressure, atmospheric moisture, and wind and ocean currents
Indicate whether the statement is true or false
The physical location of Southern Africa is the large part of the continent to the south of the extensive __________ River basin.
a. None of these b. White Nile c. Victoria d. Zambezi e. Congo