lesson 3 Flashcards
1
Q
nutrient
A
substance that an organism uses to build and repair cells
2
Q
water cycle
A
the cycle in which water moves
3
Q
evaporation
A
the process in which water is heat and turned in to vapor
4
Q
precipitation
A
when the water vapors come down from the skie
5
Q
run off
A
when water runs from the ground into streams
6
Q
aquifers
A
underground lakes formed from water seeping through soil
7
Q
transpiration
A
water leaving plants through it leaves
8
Q
nitrogen cycle
A
cycle in which nitrogen is cycled
9
Q
nitrogen fixation
A
the conversion of nitrogen gas into ammonia
10
Q
Nitrifying bacteria
A
converts ammonia into nitrates
11
Q
Denirtifying bacteria
A
converts nitrates into nitrogen gas
