The four main human activities that reduce the amount of land and resources are:
Quarrying for metal ores
Manufacturing more
Dumping waste
Farming
Burning fossil fuels
Builiding
CO2 can be sequestered in natural stores. How? Choose 3
Green plants
Oceans,lakes and ponds
Ozone layer
Reptine fuels
Peat bogs
Gases in the atmosphere naturally act like an insulating layer
Deforestation is the cutting down of forests. It's done for various reasons. Choose 3 correct reasons
To give native species more room
To clear more land for farming
To provide timber to use as a building material
To produce paper from wood
Deforestation leads to four main problems. What are they?
More carbon dioxide in the atmosphere
More oxygen in the atmosphere
Less biodiversity
Less carbon dioxide is taken in
More methane in the atmosphere
Destroying peat bogs adds more CO2 to the atmosphere
There are many consequences of global warming. Choose 4
Millions die
Changes in migration patterns
Biodiversity could be reduced
Ice melts
Earthquakes and volcanic eruptions
Sea levels rise (as it gets warmer it expands)
Fuels can be made by fermentation. Fermentation is when bacteria or yeast break down proteins by aerobic respiration
Ethanol is made by anaerobic fermentation of sugar Glucose = ethanol + carbon dioxide + energy
Biogas is made by anaerobic fermentation of waste material
