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Appendix B: Abbreviations and equivalences

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Abbreviations

GDP
gross domestic product
ha
hectare
H20
water
kg
kilogram
km
kilometre
km2
square kilometre
km3
cubic kilometre
L
litre
m2
square metre
m3
cubic metre
mm
millimetre
NAICS
North American Industry Classification System
t
tonne
t-km
tonne kilometre

Equivalences

1 hectare =
1 km2 / 100
1 km2 =
100 hectares
1 tonne =
1,000 kilograms

Prefixes of the Metric System

Prefix and abbreviation
Multiplication factor
exa (E)
1018
peta (P)
1015
tera (T)
1012
giga (G)
109
mega (M)
106
kilo (k)
103
hecto (h)
102
deca (da)
101
deci (d)
10-1
centi (c)
10-2
milli (m)
10-3
micro (µ)
10-6
nano (n)
10-9
pico (p)
10-12
femto (f)
10-15
atto (a)
10-18

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