« previous next »

Author Question: Deposits of coal are called coal seams, which can be anywhere from 20 to 300 feet thick, and stretch ... (Read 37 times)

michelleunicorn

  • Hero Member
  • *****
  • Posts: 565
on: Jul 21, 2018
Deposits of coal are called coal seams, which can be anywhere from 20 to 300 feet thick, and stretch over hundreds of square miles.
 
  Indicate whether the statement is true or false.

Question 2

__________ invented the first four stroke internal combustion engine.
 
  Fill in the blank(s) with the appropriate word(s).


smrerig

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 21, 2018
Answer to Question 1

T

Answer to Question 2

Nikolas Otto


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Structure and function of the thick and thin filaments. Structure and function of the thick and thin filaments.
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
Some ignition coils are electrically connected, called married (top figure), whereas others use ... Some ignition coils are electrically connected, called married (top figure), whereas others use ...
Shoulder and Torso Stretch by Twisting and Looking Behind. Shoulder and Torso Stretch by Twisting and Looking Behind.
Scoop from (A) shoulders to (B) heels. Hold feet in one hand; with other hand use the palm to apply ... Scoop from (A) shoulders to (B) heels. Hold feet in one hand; with other hand use the palm to apply ...
China has relied on cheap coal to meet its demand for energy China has relied on cheap coal to meet its demand for energy
Video: Miller's reaction chamber experiment Animation

For a complete list of videos, visit our video library