Study your flashcards anywhere!

Download the official Cram app for free >

  • 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

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/6

Click to flip

6 Cards in this Set

  • Front
  • Back

Biofuels: Advantages

-Carbon neutral


-Ethanol oxygenate (so less CO)


-Biodiesal biodegradable and so not as harmful to environment if spilled.


-Renewable

Biofuels: Disadvantage

-Large amounts of land required in order to grow sugar cane


-Pricing can be uncompetitive compared to oil

Hydrogen: Advantages

-Produces only water upon combustion


-Current systems require small amounts of modification to use

Hydrogen: Disadvantages

-Has a low energy density, so must be stored as liquid which requires compression


-Takes electricity to produce from the hydrolysis of water in the first place.

Nuclear power: Advantages

-Produces no greenhouse emissions to produce electricity


-Can be highly cost effective way to produce vast quantities of energy

Nuclear power: Disadvantages

-Nuclear waste (which is toxic and harmful to the environment) must be disposed of


-Any accidents that occur can be catastrophic and fatal on an extremely large scale