This topic contains a solution. Click here to go to the answer

Author Question: The cleanest burning and densest type of coal is _______________. Fill in the blank(s) with the ... (Read 66 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
The cleanest burning and densest type of coal is _______________.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

The development of deep coal mines required a way to remove groundwater that sometimes flooded the
  mines. This led to the invention of the _______________.


 
  Fill in the blank(s) with the appropriate word(s).



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cici

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

anthracite

Answer to Question 2

steam engine




rachel9

  • Member
  • Posts: 495
Reply 2 on: Jul 21, 2018
Great answer, keep it coming :)


dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

For a complete list of videos, visit our video library