B3b
- Created by: Joanne gallagher
- Created on: 26-03-15 19:00
View mindmap
- B3b
- Deforestation
- CO2 is released- micro-organisms break down trees (respiration
- burning tree debris releases CO2 into atmosphere
- people loose land when rainforests are cut down
- Global Warming
- earth receives heat from sun. Gases in atmosphere absorb.
- if they didn't absorb, would be lost into space. CO2 and methane keep earth surface warmer
- If amounts of CO2 and methane increase, the heat will reflect back to earth's surface
- coal, oil and natural gases are carbon based, producing water and CO2 when burned. when CO2 enters atmosphere it creates a blanket.
- earth receives heat from sun. Gases in atmosphere absorb.
- Biofuel
- produce less carbon dioxide than biodiesel. not carbon neutral. fossil fuels are used in their production
- Bioethanol
- C2H5OH
- not a hydrocarbon- contains O2, Carbon and Hydrogen. made during fermentation
- Biodiesel
- made from rapeseed oil and other plant oils
- used in diesel powered vehicles
- carbon neutral- amount of carbon released is equal to the amount of carbon absorbed- reducing greenhouse gas
- contains very little sulphur
- made from rapeseed oil and other plant oils
- Deforestation
Comments
No comments have yet been made