« previous next »

Author Question: What is the main mineral source of phosphorous in phosphate fertilizers? A) Topaz B) Calcite C) ... (Read 31 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?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Pre–Main-Sequence Stars Pre–Main-Sequence Stars
Mineral Use in the U.S. Mineral Use in the U.S.
Processing—Mineral Resources Processing—Mineral Resources
Global OBD II can be accessed from the main menu on all aftermarket and some original equipment ... Global OBD II can be accessed from the main menu on all aftermarket and some original equipment ...
Three Main Types of Tectonic Plates Boundaries Three Main Types of Tectonic Plates Boundaries
Fatty fish, such as salmon, are an excellent source of omega-3 fatty acids Fatty fish, such as salmon, are an excellent source of omega-3 fatty acids
Video: Pasteur's Experiment

For a complete list of videos, visit our video library