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 105 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

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Any number of crossovers gives 50 percent recombinants Any number of crossovers gives 50 percent recombinants
a) Shift your weight at the end of your reach. b) Avoid overreaching. a) Shift your weight at the end of your reach. b) Avoid overreaching.
Medium-Range Forecasts Medium-Range Forecasts
Summary of SOAP Note Content Summary of SOAP Note Content
Oprah Winfrey reached her goal weight Oprah Winfrey reached her goal weight
Belief that premarital sex is “not wrong at all,” Canada, 1975—2016 (in percent) Belief that premarital sex is “not wrong at all,” Canada, 1975—2016 (in percent)
Video: Protein digestion - stomach & small intestine

For a complete list of videos, visit our video library