What is one disadvantage of the use of synthetic fertilizers ...

[colton]

What is one disadvantage of the use of synthetic fertilizers compared to natural fertilizers like compost?
 
  A) Synthetic fertilizers do not provide organic bulk needed for microorganisms in soil.
  B) Synthetic fertilizers do not provide inorganic ions needed for soil health.
  C) Synthetic fertilizers do not provide soluble fiber needed for soil health.
  D) Synthetic fertilizers are better than natural fertilizers because they do not lead to chalky soil.
  E) all of the above

Question 2

Metal ores are isolated from rock by taking advantage of differences in both physical and chemical properties. Cite examples given in the textbook where differences in physical properties are used.
 
  A) the electrolysis of impure copper metal
  B) the addition of carbon to the iron ore blast furnace
  C) the addition of oil to a slurry of metal sulfides
  D) all of the above

[kswal303]

Answer to Question 1

A

Answer to Question 2

C

[colton]

Excellent

[apple]

Gracias!