« previous next »

Author Question: Which type of rock is abundant in older rock formations but more rare in newer formations, may ... (Read 79 times)

CBme

  • Hero Member
  • *****
  • Posts: 548
on: Jul 16, 2018
Which type of rock is abundant in older rock formations but more rare in newer formations, may contain oil or gas, and is formed by a reaction with a previous sedimentary rock?
 
  A) anthracite
  B) bituminous coal
  C) chert
  D) dolostone

Question 2

What conditions during the formation of coal may reduce its quality for industrial use?
 
  A) Very high heat and pressure are applied.
  B) Clay and silt wash periodically through the swamp that formed the coal.
  C) The swamp that formed the coal floods.
  D) The coal is formed of mostly green plants and contains very few woody trees.


snackralk

  • Sr. Member
  • ****
  • Posts: 363
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

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.

Older adults may grieve intensely over the loss of a person or situation that has been a part of the Older adults may grieve intensely over the loss of a person or situation that has been a part of the
Polypharmacy in older adults Polypharmacy in older adults
Selected High-Risk Drugs for Older Adults Selected High-Risk Drugs for Older Adults
The ability to solve problems may be highly efficient in the older adult The ability to solve problems may be highly efficient in the older adult
Granite and Granitic Rock Granite and Granitic Rock
ABO blood type ABO blood type
Video: Wound Cultures

For a complete list of videos, visit our video library