Question

Phosphorus and calcium are two elements that differ in their matter cycles from nitrogen,carbon, or sulfur cycles because they

A. are not transported in fluid systems
B. have very gaseous states
C. are more complex in their mineral ore configuration
D. do not involve the atmosphere

thanks for the help!

Answer 1

Phosphorus and calcium are two elements that differ in their matter cycles from nitrogen,carbon, or sulfur cycles because they

A. are not transported in fluid systems