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Geography > Living World > Flashcards

Living World Flashcards

1
Q

Eco systems

A

A biological community of interacting organisms and their physical environment

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2
Q

Producer

A

Use the sun for energy

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3
Q

Primary consumer

A

Herbivore

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4
Q

Secondary consumer

A

Carnivore

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5
Q

Decomposer

A

Organisms that break down plants

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6
Q

Biome

A

Global scale ecosystem

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7
Q

Examples of global scale ecosystems

A

Tropical Rainforests
Deserts
Tropical grasslands
Tundra

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8
Q

Tropical rainforests distribution

A

Distributed near the equator 20 degrees either way

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9
Q

Layers of the forest

A

Emergent layer

Canopy

Under canopy

Shrub layer

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10
Q

Causes of deforestation

A

1) tree decay
2) farmers need space
3) roads
4) paper / wood
5) climate change - flooding
6) mining

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11
Q

Impacts of deforestation on the environment

A
  • creates 20% of greenhouse gases
  • CO2 is taken in by trees
  • when plants are damaged they release CO2
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12
Q

Impacts of deforestation on indigenous tribes

A
  • less recourses

- diseases brought by modern humans that they can’t fight

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13
Q

Impacts of deforestation on river pollution

A
  • Destroyed trees can create dams and floods

- Plants creates 70% of rain

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14
Q

How to manage rainforests sustainably

A

1) selective logging - trees have to reach a particular height to be cut down
2) afforestation - replacing felled trees with saplings
3) conservation and education for future generations
4) international agreements - give countries an incentive to stop deforestation

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15
Q

Characteristics of polar environments

A
  • inland
  • average temp is below 0
  • partially or fully covered in ice
  • well adapted wildlife
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16
Q

Tundra

A
  • brief summer
  • high latitude
  • more precipitation
  • small shrubs
17
Q

Cold environments under threat

A
  • large amount of oil
  • trading routes
  • countries can exploit sea 200 km away from their land
18
Q

Opportunities and challenges in cold environments

A

Opportunities

  • scientific research of wildlife and climate change
  • development trough natural resources

Challenges

  • impact on environment like oil spills
  • no infrastructure
  • phycological isolation
  • climate change

Geography (2 decks)

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