Ecosystems Questions Flashcards

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1
Q

State two characteristics of tundra ecosystems.

A

One characteristic is that there is little sunlight.

Another is that there is also little rain.

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2
Q

Which one of the following is where large scale desert ecosystems are not found?

A

Central South America.

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3
Q

Compare the climate graphs for the tropical and boreal forest ecosystems.

A

Temperatures for the tropical forest graph are above 26 degrees each year and rise to a maximum of 27.5 degrees in October. However, temperatures in boreal forest only reach above freezing between May and August.

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4
Q

Name one local factor that affects ecosystems.

A

Altitude Differences.

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5
Q

State the correct layer of the Earth where life exists.

A

The biosphere.

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6
Q

Identify two building materials provided by the biosphere.

A

Straw and timber.

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7
Q

State two characteristics of moorlands.

A
  • Found in upland areas.

- Peat bogs and rough grassland.

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8
Q

Which two of the following are characteristics of wetlands?

A

Waterlogged soils and low in nutrients.

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9
Q

State the type of weathering that occurs in tropical rainforests.

A

Chemical weathering.

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10
Q

Explain why this type of weathering occurs.

A

It occurs because of warm and moist conditions.

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11
Q

Explain the contribution made by humans to the functioning of the tropical rainforests.

A

Humans contribute due to indigenous tribes that hunt animals for food, carry out small-scale farming and spread seeds.

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12
Q

Identify which one of the following is not an animal adaptation for living in a tropical rainforest.

A

Strong limbs.

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13
Q

Define the term biodiversity.

A

Biodiversity is the vary in animal and plant life in a habitat.

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14
Q

State two goods provided by tropical rainforests.

A

Diverse range of plant species and timber for manufacturing.

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15
Q

Explain why resource extraction is causing the deforestation of tropical rainforests.

A

It is causing deforestation because they have to extract resources that they need such as timber and minerals.

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16
Q

State two resources provided by the biosphere.

A

Fuel and food.

17
Q

Explain why marine ecosystems are important to the UK as a resource.

A
  • Tourism.
  • Energy.
  • Fishing.
18
Q

Compare abiotic components and abiotic components of the tropical rainforest.

A

Biotic:
- living parts of the ecosystem such as indigenous tribes.

Abiotic:
- Non-living parts of the ecosystem.

19
Q

Suggest one reason why tropical rainforests have high levels of biodiversity.

A
  • It is the most productive ecosystem on Earth.

- Hot, wet climate all year.

20
Q

State one example of a service provided by tropical rainforests.

A
  • Acts as a carbon store.
21
Q

Explain why resource extraction is causing the deforestation of tropical rainforests.

A

Population pressure, agriculture and the need for resources.

22
Q

Explain one reason why tropical rainforests require sustainable management.

A
  • It consists of one third of the planet’s remaining tropical rainforest.
23
Q

State one characteristic of deciduous woodlands.

A
  • They have abiotic and biotic components.
24
Q

Suggest one way animals living in deciduous woodlands are adapted to their environment.

A
  • Birds migrate away from the UK to warmer conditions.

- Squirrels store food, burying it in spring and summer to use in winter.

25
Q

Explain how climate change presents a threat to deciduous woodlands.

A

Structure: Rising temperatures and drier conditions increase the risk of forest fires.

Functioning: Increased periods of drought could threaten the survival of deciduous woodland trees because they become more vulnerable to diseases.

Biodiversity: Milder winters could mean pests could survive in warmer conditions, causing a rise in disease that could put vulnerable species in danger.

26
Q

Explain two causes of deforestation in deciduous woodlands.

A
  • Population growth.

- Timber extraction.