Author Question: What is the main mineral source of phosphorous in phosphate fertilizers? A) Topaz B) Calcite C) ... (Read 51 times)

c0205847

  • Hero Member
  • *****
  • Posts: 531
What is the main mineral source of phosphorous in phosphate fertilizers?
 
  A) Topaz
  B) Calcite
  C) Kaolinite
  D) Apatite

Question 2

List three economic materials that can be profitably extracted from placer deposits.
 
  A) Gold, platinum, and tin
  B) Diamonds, iron, and quartz
  C) Sand, gravel, and silt
  D) Granite, basalt, and gabbro



heyhey123

  • Sr. Member
  • ****
  • Posts: 353
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

For a complete list of videos, visit our video library