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Geography > Tropical Rainforests > Flashcards

Tropical Rainforests Flashcards

1
Q

Where in the world are rain forests found

A

0-30° N/S

Between the Tropics of Cancer and Capricorn

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2
Q

What atmospheric condition lead to the formation of rain forests

A

Low pressure

High precipitation

Directly heated by the sun

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3
Q

How tall are trees in the emergent layer

A

60-80m

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4
Q

What is the density of emergent trees in rainforests

A

1-2 / acre

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5
Q

What are biotic features of the emergent layer

A

Plants prevent water loss by having waxy leaves with a low surface area

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6
Q

What are abiotic features of the emergent layer

A

Dry and bright as a result of direct sunlight and strong winds between heavy showers

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7
Q

How tall are trees in the canopy layer

A

20-40m

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8
Q

What are biotic features of the canopy layer

A

Upper part of most trees

Verdurous environment home to insect, arachnids, birds and some mammals

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9
Q

What are biotic features of the under-canopy layer

A

Saplings waiting for older trees to die off

Lianas

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10
Q

What are abiotic features of the under-canopy layer

A

Limited light

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11
Q

What are biotic features of the forest floor

A

Little vegetation between trees

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12
Q

What are abiotic features of the forest floor

A

Very little light

Prone to flooding

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13
Q

What is biomass

A

All living things in an ecosystem

Flora and fauna

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14
Q

What is litter

A

Dead organic material

E.g. fallen leaves, dead animals

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15
Q

What is soil

A

Dead organic material mixed with weathered bedrock

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16
Q

How does biomass become litter

A

Nutrients fall to the ground when flora and fauna die

17
Q

How does litter become soil

A

Nutrients become part of the soil when litter decomposes

18
Q

How does soil become biomass

A

Flora take up nutrients, which are dissolved in the soil

Fauna consume the flora and take up its nutrients

19
Q

What is biodiversity

A

The variety of flora and fauna in an ecosystem

20
Q

What is an adaptation

A

A feature of an organism has to enable them to survive in the conditions that they normally live

21
Q

What do buttress root do

A

Support tall trees

Shallow root quickly quick up recently dissolved nutrients

22
Q

What are epiphytes

A

Plants that live on other plants in order to receive sunlight

Recieve nutrients from water and air

23
Q

What are liana

A

Vines that root in the soil and climb plants to receive sunlight

24
Q

What are drip-tip leaves

A

Shiny leaves that repel water to prevent rot

25
Q

What are sustainable practices

A

Practices that are long-lasting and not environmentally damaging for future generations

Geography (10 decks)

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