Posted: April 20, 2020
In alphabetical order:
acid rain
air
animals
arctic
birds
chemicals
clean-up
climate
compost
contaminate
contamination
creatures
damage
desert
dump
earth
endangered
energy
environment
extinct
fauna
fish
flora
food chain
forest
future
garbage
global
green
greenhouse gas
habitat
lakes
land
landfill
litter
nature
ocean
oil spill
ozone
people
planet
plants
poison
pollution
protect
rain forest
recycle
reduce
resources
reuse
rivers
save
sea
sky
smog
species
toxic
trash
trees
water
wetland
wildlife
world