agriculture
arid
bud
care
climate
conservation
crack
csr
deforestation
desert
destruction
disaster
drought
dry
earth
ecology
environment
environmentally friendly
famine
forestation
germinate
global warming
green
ground
grow
growth
hands
heat
hope
hot
land
leaf
life
love
nature
new
plant
preservation
protect
sand
scarcity
shortage
soil
struggle
sun
sustainable
tree
water
weather
young