• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/16

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

16 Cards in this Set

  • Front
  • Back
What is coal made of?
remains of trees and other plants millions of years ago
Which is the most plentiful fossil fuel?
coal
how is coal gotten from the ground? what do they use?
mined and machines
How is mining dangerous?
it increases erosion and causes air pollution when burned
describe oil.
thick black liquid formed from the remains of small animals that lived in the ocean etc.
Where are oil deposits?
deep below the surface
How do scientists see where oil is?
they use sound waves
What is another name for oil
petroleum
When petroleum first comes out of the ground, what is it called? How does it turn into actual petroleum?
crude oil. It must be refined
How much energy is produced by oil in the world?
1/3
What is natural gas made out of?
mixture of methane and other gases. it also forms from the same organisms as oil does.
How does narutal gas's weight affect its location underground?
it is less dense so it rises above oil deposits
how do people get natural gas to where it will be used?
pipelines
How long are all pipelines in the US?
from the moon and back twice
What can natural gas be compressed in?
tanks
what is good about natural gas?
it supplies alot of energy and gives off less pollutants than oil or coal.