vocabulary
stress
water falling from the sky as rain or snow
precipitation
plants take in this gas during photosynthesis
carbon dioxide
nitrogen is found mostly in the
air
too much water causes this event
flood
gradual changes in an ecosystem over time
succession
when liquid water changes into water vapor
evaporation
plants release this gas during photosynthesis
oxygen
plants cannot use nitrogen until its changed
true
too little water causes this event
drought
organisms that break down dead plants and animals
decomposers
when water vapor cools and becomes liquid
condensation
animals breathe in this gas
oxygen
these organisms help change nitrogen into usable forms
bacteria
this natural event can turn nutrients to the soil
forest fire
a species that is not native and causes harm
invasive species
when plants release water vapor into the air
transpiration
animals breath out this gas
carbon dioxide
bacteria live in nodules on plants
roots
floods can help the ecosystem by spreading
soil and nutrients
keeping earth's resources from being wasted
balance
the cycle that includes evaporation, condensation, and precipitation
water cycle
the process plants use to make sugar
photosynthesis
nitrogen moves from air-->plants-->animals-->soil-->____
air
droughts do not have a clear beginning or ending
true