5
afforest
agriculture
bio
care
conservation
conserve
cultivated
day
development
dig
dirt
earth
ecology
environment
field
fragility
garden
green
ground
grow
growing
growth
hand
hold
human
june
land
life
natural
nature
new
organic
plant
plantation
protect
protection
seed
seedling
shovel
soil
spade
spring
sprout
summer
tool
tree
work
young