semester 2 yr10 exam Flashcards

1
Q

Factors of climate change

A

removing trees
Damming rivers
mining
Pollution

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2
Q

Categories of land degradation

A

changes to land
Changes to atmosphere
changes to water

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3
Q

Land degredation

A

loss of productivity/fertility of land-based environments

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4
Q

Soil degradation

A

loss of fertility of soil. Becomes compacted, loses nutrients, becomes acidic.

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5
Q

Salinity

A

build-up of salt in the topsoil

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6
Q

Soil erosion

A

soil is gradually worn away by natural phenomena

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7
Q

Types of erosion

A

wind erosion
Gully erosion
sheet erosion

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8
Q

Ozone layer

A

region of atmosphere protecting earth from sun’s ultraviolet radiation

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9
Q

Air pollution

A

air affected by pollutants

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10
Q

3 types of pollutants

A

Physical
chemical
Biological

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11
Q

physical pollutants

A

Litter

plastic

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12
Q

Chemical pollutants

A

when concentration of chemicals in water are harmful.

Eg. Oils

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13
Q

biological pollutants

A

Bacterial and parasitical pollution

eg. Sewerage

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14
Q

4 S’s of ecosystem services

A

sources
sinks
services
Spirituality

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15
Q

sources

A

Natural products used or converted by humans for our use

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16
Q

sinks

A

Processes in natural environment that absorb our waste

17
Q

Services

A

things that are done for us by natural environment that don’t produce consumable resources

18
Q

Spirituality

A

personal relationships that humans have with environment

19
Q

Sustainability

A

ongoing capacity of the environment to support lives of all living things into the future

20
Q

Biodiversity

A

variety of living organisms on the planet.

Measured by number of species present in ecosystem or region.

21
Q

4 greenhouse gases

A

Carbon dioxide
methane
Nitrous oxide
fluorinated gases

22
Q

Coastal degradation

A

changes in coastal environments

23
Q

Factors of wellbeing

A
values
Beliefs 
history 
Environment 
level of education 
Language 
culture
24
Q

Role of UN

A

peace and security
Development
human rights
Humanitarian aids