In terms of biogeochemical cycles, calcium has a(n) ________. ...

[Lisaclaire]

In terms of biogeochemical cycles, calcium has a(n) ________.
 
  A) mysterious cycle
  B) non-repeatable cycle
  C) asynchronous cycle
  D) cycle very similar to that of nitrogen
  E) sedimentary cycle

Question 2

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

[stillxalice]

Answer to Question 1

39) In terms of biogeochemical cycles, calcium has a(n) ________.

Answer to Question 2

Answer: A

[Lisaclaire]

Excellent

[triiciiaa]

Wow, this really help