This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why does Silica content in most magmas range from 45 to almost 80 percent by weight? A) Silica is ... (Read 109 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
on: Jul 16, 2018
Why does Silica content in most magmas range from 45 to almost 80 percent by weight?
 
  A) Silica is very heavy and therefore throws off the percent weight.
  B) Silica is made up of silicon and oxygen, two elements most prevalent in the earth's crust.
  C) Silica is a very heavy gas.
  D) Silica is extremely light.

Question 2

True or False: The composition of the magma determines the minerals that form in an igneous rock.
 
  Indicate whether this statement is true or false.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Amiracle

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 16, 2018
Answer to Question 1

Thank you for answering this question.

Answer to Question 2

Answer: TRUE


corkyiscool3328

  • Member
  • Posts: 539
Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

komodo7

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Nitrogen content of live and dead leaves Nitrogen content of live and dead leaves
Range of Motion of the Hip Joint, Position of the Leg for Full External Rotation Range of Motion of the Hip Joint, Position of the Leg for Full External Rotation
Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
Nutrition and Body Weight Nutrition and Body Weight
Metabolic syndromes: Dealing with Weight Extremes Metabolic syndromes: Dealing with Weight Extremes
Rita borrows $4,500 from the bank at 9 percent annually compounded interest to be repaid in ... Rita borrows $4,500 from the bank at 9 percent annually compounded interest to be repaid in ...
Video: Oxygen transport - methods and oxyhemoglobin

For a complete list of videos, visit our video library