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Biology > Chapter 6- Humans In The Biosphere > Flashcards

Chapter 6- Humans In The Biosphere Flashcards

1
Q

What are the human activities that affect the biosphere

A 
Hunting 
Gathering 
Agriculture 
Industry 
Urban development
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2
Q

Agriculture allowed for

A

(Farming) humans to increase and animal husbandry which is easing farm animals which made food rapidly increase and provided a dependable food source

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3
Q

Steel is made of a

A

Iron with added carbon

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4
Q

How did the steel plow change the human race

A

It allowed for large scale agricultural production

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5
Q

The green revolution

A

Food became very easily available. It is responsible for the rapid growth of the human population

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6
Q

Monoculture

A

When large Fields are planted with the same single variety of plants year after year. This isn’t good because if I passed or disease comes all of our food will be gone. He must have diverse city. It happens when farmers plant what is most popular and profitable year after year

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7
Q

Mono

A

One

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8
Q

The industrial revolution allowed for

A

The electric motor which led to elevators which allowed for big buildings which created cities
Wealth from agriculture led to the makin of cities

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9
Q

Renewable resources can

A

Regenerate if they are alive or can be replenished by bio geochemical cycles if they are nonliving

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10
Q

Nonrenewable resources

A

Cannot be replenished by natural processes

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11
Q

What is the tragedy of the commons

A

When a resource is so readily available that it is not regulated or or is impossible to regulate. Therefore it gets used up

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12
Q

What is sustainable development

A

A way of using natural resources without depleting them and of providing for human needs without causing long term environmental harm

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13
Q

What percent of the United States power is nuclear

A

22%

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14
Q

What can affect the quality and supply of renewable resources such as land, forests, fisheries, air, and freshwater

A

Anthropogenic activities (humans)

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15
Q

Desertification

A

When a fertile productive area turns into a desert because of farming, overgrazing, and drought

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16
Q

What is contour plowing

A

When farmers plow around a hill in a circle so as the water from the rain comes down it does into the grooves and gets absorbed which limits soil erosion.

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17
Q

Deforestation

A

Clear cutting which is when humans cut down every tree and erosion follows it

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18
Q

What is the lungs of the earth bc it produces oxygen and gets rid of carbon dioxide

A

Forests

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19
Q

Aquaculture

A

The raising of aquatic animals for human consumption

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20
Q

ANWR

A

Arctic natural wildlife refuge

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21
Q

Why do elephants and other large animals have a problem with conservation

A

They need lots of space and areas of big habitat

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22
Q

What percent of the earths surface is considered wilderness

A

39

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23
Q

What percent of the wilderness is protected

A

12

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24
Q

How many trees are cut in the Amazon forest each year

A

The size of Switzerland

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25
Q

Why do wild dogs have trouble even though they have space and aren’t hunted

A

They caught diseases from domestic dogs

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26
Q

Why are baboons struggling

A

They run out of space bc farms come into their alpine grass habitat

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27
Q

The major threat to the environment

A

A combination of the number of people and to what degree they consume things and how they live/what they buy

28
Q

How much money does half the worlds poplulation live on in a day

A

2 dollars

29
Q

What percent of water we take out of rivers lakes etc goes into agriculture

A

70

30
Q

Biophilia

A

The love for nature that humans naturally have

31
Q

What is the home of the modern environmentalism movement and why

A

Western civilization Bc we are wealthy and educated

32
Q

Ecosystem diversity is when

A

There are many different habitats, communities,and ecological processes

33
Q

Species diversity is when there are

A

Lots is different species

34
Q

Biodiversity is the

A

Sum of the genetically based variety of all organisms in the biosphere

35
Q

What is genetic diversity

A

The sum total of all the different forms of genetic information carried by all organisms living in earth today

36
Q

Species give us

A

Food
Industrial products
Meds

37
Q

Extinction

A

A species has disappeared either from the world or a specific area

38
Q

Endangered species

A

Population drops and chance of extinction

39
Q

Habitat fragmentation is when

A

Habitats become separated usually by human activities such as highways and become like islands

40
Q

What is the name of the organization that bans international trade in products from endangered species and they prevent poaching

A

CITES

41
Q

Biological magnification

A

When concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain/web

42
Q

What is silent spring

A

A book by Rachel Carson. She researched biological magnification and realized DDT harms birds

43
Q

The study of birds

A

Ornithology

44
Q

Birds of prey include

A

Owls
Hawks
Eagles
Falcons

45
Q

Two of the types of genetic modification

A

Genetic therapy

CRISPR

46
Q

Genetic therapy

A

An individual has a disease and they modify the genes to not have the disease

47
Q

CRISPR

A

created something new
The danger is that if you mess with a gene that controls more than one hug you might correct one problem and create another

48
Q

What molecule is the ozone made of

A

O3

49
Q

Where is the ozone

A

High in the stratosphere

50
Q

How is the ozone created

A

By UV light it goes through the cycle O+O2- > O3

51
Q

Explain how the ozone protects us

A

UV b and UV c break O3 apart and send it the other what which absorbe the UV rays

52
Q

What are CFCS

A

Chlorofluorocarbons that are easily compressed and are sued in propellants and in air conditioners and refrigerators .

53
Q

How do CFCS get in the atmosphere

A

When the refrigerators and Samir conditoners get crushed in the dump the gas escapes and went high into the atmosphere and attacked the ozone

54
Q

How is global warming caused

A

When we burn fossil fuels and a more CO2 is produced into the atmosphere the CO2 acts like a blanket and it holds the energy well

55
Q

What are greenhouse gases and stuff

A

H20 vapor, methane and CO2

56
Q

How much has the eart warmed in the past 100 yrs

A

1 degree c

57
Q

Ho much has the earth warmed in the last 10-15 yrs

A

0

58
Q

Glacial periods

A

Are ice ages where ice earth covers the earth

59
Q

The two groups of the environmental controversy

A

Alarmists who think climate change is bad and caused by men

Skeptics who say global warming isn’t a big deal or concern and that it is more political than scientific

60
Q

Phrase for the climate is cooling

A

Going down the up escalator

61
Q

Services

A

Something provided for our benefit

62
Q

Ecosystem services

A

Services humans receive from the environment

63
Q

Name four ecosystem services

A

Solar energy
Oxygen
Helps to restore and recycle nutrients
Regulate the climate

64
Q

Normal rain pH

A

6.5-6.8

65
Q

Acid rains pH

A

5

15 times more acid than normal rain

66
Q

Why aren’t the lakes near us affected by acid rain

A

We have limestone underground that neutralizes the rain

67
Q

What is tracking

A

When they drill a couple thousand feet down and use pressure to break up the rock to get to the natural gas
A alternative for fossil fuels
Solves the acid rain problem but not global warming

Biology (19 decks)

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