Nouns
World problems
acid rain
(skin) cancer
crime
drug trafficking
drunk driving
dumping
famine
global warming
government corruption
(the) homeless
incurable disease
inflation
overcrowding
overfishing
political unrest
pollution
poverty
unemployment
The earth
air
coal
farm(land)
fish
(rain) forest
lake
ocean
oil
ozone layer
plant
river
soil
wildlife
Other
accident
amount
automobile
bottle
case
center
CFC
chemical
city
company
contribution
executive
factory
garbage
government
growth
hair spray
health
housing
landfill
law
livestock
management
member
paper
product
program
publicity
quality
reduction
run (a story)
school
(TV) station
supply
training
transportation
trash
uncle
use
waste
way
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Adjectives
agricultural
educational
free
huge
illegal
industrial
major
old
protective
public
rare
terrific
top
underground
unemployed
Verbs
become
build
clean up
contaminate
control
create
cut down
deplete
develop
dispose (of)
eat up
ignore
improve
increase
lessen
lower
pollute
pump
recycle
reduce
ruin
think about
threaten
work on
Adverb
outside
Prepositions
against (the law)
as a result of
because of
due to
into
on (the street)
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