made of cells
can reproduce
movement
death
nutrition
respire
growth
homeostastis (responsiveness)
minerals (rock)
sun (energy)
water
O₂ and CO₂
change in an abiotic condition over a distance
changing in elevation
changing in depth
waste
jogging (soil compaction)
storms
land slide
fires
food sources
trees, grains
rock
minerals and nutrients
nuke/uranium
fossil fuels
solar energy
wind energy
hydro power