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Science > Resources In A Ecosystem > Flashcards

Resources In A Ecosystem Flashcards

1
Q

What are materials that are found in nature that are needed for humans?

A

Natural resources

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2
Q

What are examples of natural resources?

A

Rocks, DHMO, H20, trees, water, grass oil, gold

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3
Q

What is the MVR (most valuable resource)

A

Water

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4
Q

How much water do Americans use a day?

A

40-100 gallons

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5
Q

Whereas drinking water found?

A

Lakes, ponds, rivers, underground (wells)

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6
Q

What uses waters energy to generate electricity ?

A

Hydroelectric dams

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7
Q

How much building material do Americans use per year?

A

17,600lbs

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8
Q

How much metal do Americans use per year?

A

55lbs

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9
Q

How much oil do Americans use per year?

A

1,100 gallons

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10
Q

where do we find all the resources needed?

A

THE EARTH!!

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11
Q

How many mines are in the USA?

A

500,000

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12
Q

what do the mines mine?

A

Coal, gravel, metals, rocks

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13
Q

Where does oil pocket?

A

underground

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14
Q

what is with oil?

A

Natural Gas

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15
Q

Where is lumber found?

A

Forests

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16
Q

What is the careful use of resources so that they can last as long as possible??

A

Conservation

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17
Q

What are the two types of resources??

A

renewable and nonrenewable

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18
Q

what cannot be replaced within a human lifetime?

A

Nonrenewable resource

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19
Q

What are examples of nonrenewable resources?

A

coal, oil natural gas, metals

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20
Q

What is a resource that can be replaced in a human lifetime?

A

renewable resource

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21
Q

what are examples of renewable resources?

A

Animals and plants

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22
Q

What are the 3 R’s?

A

Reduce, Reuse, Recycle

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23
Q

What is reduce?

A

use less of a product

24
Q

What is reuse?

A

use an item again after its original use

25
Q

What is Rcycle?

A

To process used products into new ones

26
Q

What are the 4 parts of the water cycle?

A

Precipitation, condensation, evaporation, and collection

27
Q

What is The gradual long term change of plants in an ecosystem?

A

Succession

28
Q

What are the two types of succession?

A

primary and Secondary

29
Q

What is it when plants first take root in an area where no plannts were?

A

Primary Succession

30
Q

What is it when most but not all vegitation in an area has been removed?

A

Secondary Succession

31
Q

What are examples of Primary Succession?

A

Volcano, flood, fire

32
Q

What are examples of Secondary Succession?

A

Farmer cuts down trees

33
Q

What is it that we cannot exist without carbon?

A

The carbon cycle

34
Q

What is in carbon?

A

Carbohydrates, Facts, Proteins, and DNA

35
Q

What are compounds that contain carbon?

A

Organic compounds

36
Q

What is the movement through earths ecosystems of CARBON?

A

Carbon Cycle

37
Q

Which does not happen in the carbon cycle?
A) Carbon Dioxide is used by plants in photosynthesis
B) animals get rid of CO2 by respiration
C) Resources are found underground
D) Plants are fixed by bacteria

A

D

38
Q

What is the movement of Nitrogen through living and nonliving things?

A

Nitrogen Cycle

39
Q

What moves through an ecosystem like carbon?

A

Nitrogen

40
Q 
Which is not a part of the Nitrogen cycle?
A) Animals use N2 in protein and DNA
B) Plants are fixed by bacteria
C)Oil pockets underground
D)Waste decays water
A

C

41
Q

Who are always changing ecosystems?

A

Humans

42
Q

People that are changing ecosystems are sometimes______ and sometimes_______

A

Harmful, Helpful

43
Q

What all provides us with resources?

A

Mining, Farming, and lodging

44
Q

The things that provide us with resources Harm what?

A

Land, Air, and Water

45
Q

What is the loss of an entire species?

A

Extinction

46
Q

What is something that has few individuals that could die out?

A

Endangered species

47
Q

What are examples of endangered species?

A

African Elephant and The Blue Whale

48
Q

What is the most diverse ecosystem on Earth?

A

Tropical Forests

49
Q

How much % have the tropical rain forests been destroyed?

A

almost 50%

50
Q

What have the tropical rain forests been destroyed for?

A

farmland, lumber, or oil

51
Q

What is the most disrupted ecosystem?

A

Grasslands

52
Q

How much percent of the prairie is gone?

A

99%

53
Q

What is an area that is covered by water most of the time?

A

Wetlands

54
Q

More than _____ the original _______ in the USA are gone

A

half, wetlands

55
Q

Which is an example of something that would happen in the Carbon Cycle?
A) Most the vegetation in an area has been removed
B) Animals get rid of CO2 by respiration
C)Plants are fixed by bacteria

A

B

56
Q

What is an example of something that would happen in the Nitrogen Cycle?
A) Animals use N2 in protein and DNA
B) Liquid turns to gas
C) Water falls from sky to land

A

A

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