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Greenhouses - Coggle Diagram
Greenhouses
greenhouse gases
H20
CO2
CH4
O3
N2O
CFCs
halons)
HCFCs)
PFCs
NF3
SF6
greenhouse safety tips
over heating
drowning
Wach where you are going
Design and build
Materials
Frame
Wood
Gets rotten
expand and contract
Metal
Coverage
glass
long life
more likely to break
polythene (polyethylene)
cheap
only lasts 4 years
after a few years it turns it yellow
fiberglass