« previous next »

Author Question: What is the main mineral source of phosphorous in phosphate fertilizers? A) Topaz B) Calcite C) ... (Read 63 times)

c0205847

  • Hero Member
  • *****
  • Posts: 531
on: Jul 15, 2018
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
Reply #1 on: Jul 15, 2018
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
« previous next »
 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc
William Kentridge, History of the Main Complaint. William Kentridge, History of the Main Complaint.
The two main types of nerve cells. The two main types of nerve cells.
Cover and secure the cold source in place. Wrap the cold source using a towel or elastic bandage to ... Cover and secure the cold source in place. Wrap the cold source using a towel or elastic bandage to ...
Dramatic growth of algae in water treated with phosphate Dramatic growth of algae in water treated with phosphate
Estimates of the dates of origin and extinction of the three main groups of hominins (green, blue, a Estimates of the dates of origin and extinction of the three main groups of hominins (green, blue, a
Video: Alzheimer's Disease

For a complete list of videos, visit our video library