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0
Q

What is complex life?

A

macro-organisms

1
Q

Why is the nitrogen cycle so important to complex life?

A

Because macro-organisms (complex life) cannot survive without microbes.

2
Q

How many times of bacteria are involved in the nitrogen cycle?

A

3

3
Q

The type of bacteria that breaks down dead matter-releasing nitrates into the soil.

A

decomposing

4
Q

The type of bacteria that converts N 2 to NO 3

A

nitrogen fixing

5
Q

The type of bacteria that changes NO 3 back to N 2

A

denitrifying

6
Q

True or false? Plants and animals can N 2 into a form that can be used by their cells.

A

False

7
Q

What are legumes?

A

plants with pods

8
Q

Three examples of legumes

A

soybeans, alfalfa, and clover

9
Q

True or False? Commercial fertilizer can provide the nitrogen plants need to grow.

A

True

10
Q

True or False? Commercial fertilizer is made from petroleum.

A

True

11
Q

a natural process of water molecules recycling from the land, to the air, and back to the land

A

water cycle or hydrologic cycle

12
Q

What warms water so that it is evaporated?

A

the sun

13
Q

What forms can water vapor condense in?

A

fog, mist, or clouds

14
Q

What does precipitation always start out as?

A

frozen water

15
Q

Does all water reach the Earth as precipitation?

A

No, some of it will evaporate on its way from the sky to the land

16
Q

What do animals respire when they breathe?

A

water vapor

17
Q

One type of igneous rock?

A

granite

18
Q

Two types of sedimentary rocks?

A

sandstone and limestone

19
Q

Two types of metamorphic rocks?

A

marble and slate

20
Q

When igneous rock is weathered and eroded it becomes ____________

A

sediments

21
Q

When sediments are deposited and lithification occurs they become ___________ _______

A

sedimentary rocks

22
Q

When there is heat pressure and stress applied to a sedimentary rock it becomes a _________ ______.

A

metamorphic rock

23
Q

When metamorphic rocks are melted they become ___________

A

magma

24
Q

When there is a volcanic eruption what does the magma become?

A

igneous rock

25
Q

Do rocks have to go in the order igneous to sedimentary to metamorphic?

A

no

26
Q

What percentage of the atmosphere is nitrogen?

A

78%

27
Q

___ can not be used by plants and animals.

A

N 2

28
Q

How many types of bacteria are involved in the nitrogen cycle?

A

3

29
Q

___________ is essential for amino acids, which make proteins.

A

nitrogen

30
Q

Which type of nitrogen makes up 78 percent of the atmosphere?

A

N 2

31
Q

Which type of nitrogen is inert?

A

N 2

32
Q

Which type of nitrogen can plants and animals not use?

A

N 2

33
Q

What can convert a small amount of N 2 to NO 3 but not enough for plant growth?

A

lightning

34
Q

What do nitrogen fixing bacteria do?

A

Change N 2 to NO 3 (the form that can plants and animals can use)

35
Q

What are commercial fertilizers made of?

A

petroleum

36
Q

the process of water being evaporated from the ground to the atmosphere where it becomes clouds, fog, or mist

A

evaporation

37
Q

the process of water filling the spaces between individual soil particles

A

infiltration

38
Q

Water that is neither absorbed nor evaporated

A

run off

39
Q

The slow movement of water through soil

A

seepage

40
Q

the process of a plant giving off water

A

transpiration

41
Q

The process of water being absorbed into a plant’s roots

A

absorption

42
Q

After water is evaporated it becomes ____________

A

condensation

43
Q

Any form of water that falls to the Earth’s surface

A

precipitation

44
Q

Chemical formula for water

A

H 2 O

45
Q

Are new water molecules being made?

A

no

46
Q

The sun powers the water cycle.

A

true

47
Q

Another name for the water cycle

A

the hydrologic cycle

48
Q

a continuous process where rocks are created, changed from one form to another, destroyed, and then formed again

A

rock cycle

49
Q

largest cycle on earth

A

rock cycle

50
Q

what is lithification?

A

hardened and to become rock

51
Q

does the rock cycle make earth dynamic?

A

yes

52
Q

what powers the rock cycle

A

Earth’s core