« previous next »

Author Question: Which type of rock is abundant in older rock formations but more rare in newer formations, may ... (Read 90 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?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years
Label the four mutated DNA segments shown below according to the type of point mutation each ... Label the four mutated DNA segments shown below according to the type of point mutation each ...
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 ...
Pelvis and knee rock. Hold the feet again for a moment, and move to the person’s right side. Place ... Pelvis and knee rock. Hold the feet again for a moment, and move to the person’s right side. Place ...
RAINBOW SERPENT ROCK RAINBOW SERPENT ROCK
Cordilleran-Type Mountain Building Cordilleran-Type Mountain Building
Video: Stroke volume - preload, sarcomere length and Frank -Starling law

For a complete list of videos, visit our video library