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

Author Question: True or False: Almost all natural rocks are consolidated aggregates of minerals. Indicate whether ... (Read 64 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
on: Jul 16, 2018
True or False: Almost all natural rocks are consolidated aggregates of minerals.
 
  Indicate whether this statement is true or false.

Question 2

You are given two igneous rock samples; one is said to be an intrusive (plutonic) rock and the other an extrusive (volcanic) rock. How can you tell which is which?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultana.d

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: TRUE

Answer to Question 2

Answer: Fast magma solidification usually produces small crystals, while slower crystallization forms larger crystals. The generally fine-grained rocks result from rapid cooling following eruptions from volcanoes. The coarser rocks form from the slow solidification of magma beneath Earth's surface. So, an extrusive rock would be fine-grained with small crystals, while an intrusive rock would be coarse with larger crystals. Also, the accumulation of lava flows and ash deposits produces layers, while plutonic rocks rarely accumulate in layers.


jayhills49

  • Member
  • Posts: 559
Reply 2 on: Jul 16, 2018
Gracias!

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Oil and Natural Gas Transportation Oil and Natural Gas Transportation
Natural Products Used as Antineoplastic Therapy Natural Products Used as Antineoplastic Therapy
Boys Climbing Rocks And Diving, Tomb Of Hunting And Fishing Boys Climbing Rocks And Diving, Tomb Of Hunting And Fishing
Rocks are Aggregates of Minerals Rocks are Aggregates of Minerals
Determining the Ages of Rocks Using Fossils Determining the Ages of Rocks Using Fossils
Principles of Natural Selection Principles of Natural Selection
Video: Kidney Stones

For a complete list of videos, visit our video library