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

Author Question: A scientist identifies a rock sample as rhyolite. Why did he do so? A) He observed that the rock ... (Read 105 times)

jrubin

  • Hero Member
  • *****
  • Posts: 552
on: Jul 16, 2018
A scientist identifies a rock sample as rhyolite. Why did he do so?
 
  A) He observed that the rock has a lot of silica, making it mafic.
  B) He observed that the rock has a lot of silica, making it ultra-mafic.
  C) He observed that the sample has little silica, making it felsic.
  D) he observed that the sample has a lot of silica, making it felsic.

Question 2

A scientist identifies a rock sample as andesite. Why did he do so?
 
  A) He observed that the rock has a lot of silica, making it mafic.
  B) He observed that the rock has a lot of silica, making it ultra-mafic.
  C) He observed that the rock has a decent amount of silica, making it intermediate.
  D) He observed that the sample has little silica, making it felsic.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Brummell1998

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


jrubin

  • Member
  • Posts: 552
Reply 2 on: Jul 16, 2018
:D TYSM

gcook

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period
Parenting Styles Reported by a Representative Sample of American Adolescents Parenting Styles Reported by a Representative Sample of American Adolescents
The areas in which reading-associated increases in activity were observed in the fMRI study of ... The areas in which reading-associated increases in activity were observed in the fMRI study of ...
Finishing techniques for the back of the body. With the recipient fully draped, gently rock the body ... Finishing techniques for the back of the body. With the recipient fully draped, gently rock the body ...
A sample of carbon monoxide gas occupies 125 mL at 20.0 °C and 455 mm Hg. If the A sample of carbon monoxide gas occupies 125 mL at 20.0 °C and 455 mm Hg. If the
Floating rock illusion Floating rock illusion
Video: Metaphase I Animation

For a complete list of videos, visit our video library