1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Olenka [21]
3 years ago
13

Discuss how a coal seam might be used as a key bed.

Biology
2 answers:
sergeinik [125]3 years ago
8 0

Answer: Coal seams refers to those distinctive thin beds of coal that are found to be existed in between two sedimentary rock layers. It is easily distinguishable because of its characteristic color such as dark brownish or blackish in color.

Coal is obtained from the dead remains of plants and trees that were buried millions of years ago, due to action of extreme pressure and temperature conditions. The process by which these vegetative matters are converted into coal is known as the carbonization.

This coal has extensive use such as the generation of electricity as well as in the production of steel and are obtained by two methods, such as the open cast mining and underground mining.

Sever21 [200]3 years ago
6 0
Coal seams are far deep underground to be considered for opencast minings. These coal seams require underground mining. Since it is too deep underground, it can be used for mapping and correlation of sedimentary rocks or as a key bed. 
You might be interested in
What makes ATP in the cells
DochEvi [55]
ATP is the cell's energy, the mitochondria (aka the power house of the cell) is what produces ATP. The process is called Cellular Respiration.
6 0
3 years ago
Read 2 more answers
Next Activity
Ugo [173]

Answer:

it is known as the powerhouse of he cell

Explanation:

this is because it extracts energy from food through cellular respiration

6 0
3 years ago
Where does the light independent reaction take place
hjlf

Answer:

stroma

Explanation:

The light-independent reactions represent the known Calvin–Benson–Bassham (CBB) cycle which takes place in the stroma of chloroplasts and is the primary pathway of carbon fixation of C3 plants [119].

4 0
2 years ago
Each line (unit) on the vertical axis represents:
Rudiy27

the points that are on the graph

8 0
3 years ago
Use the term biological evolution in a sentence
solong [7]
"Humans, who are limited by slow biological evolution, couldn't compete, and would be superseded".
8 0
3 years ago
Other questions:
  • How can we test for HIV during the initial acute phase?
    14·1 answer
  • what is one major function of the endomembrane system? producing and storing energy, transporting subtances in a cell, manufactu
    13·2 answers
  • What zone of the ocean is the most hospitable for fish?
    10·1 answer
  • The risk of bleeding in the skull, which increases with age, is most directly related to:
    9·1 answer
  • All of the following are positive aspects of PACs EXCEPT?
    6·2 answers
  • Which biome is the world’s largest and contains mostly coniferous trees?
    7·2 answers
  • The transport of specific particles through a membrane by channel proteins is known as facilitated diffusion.
    11·1 answer
  • A mouse’s skin cell contains 11 chromosomes. How many chromosomes would be present in each of the mouse’s bone cells?
    13·1 answer
  • The main difference between the gravitational force and electrical force is that
    11·1 answer
  • Select the correct days. rachel and her team will conduct canopy fogging to monitor the insect population in an area. looking at
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!