Section 2 - Rainforests Flashcards

1
Q

What is a rainforest

A

A very hot and wet biome located near the equator with the greatest biodiversity on earth

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2
Q

What does interdependence mean

A

the dependence of 2 or more things working together

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3
Q

What is the usual average temperature

A

20-28 degrees

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4
Q

What is the usual rainfall pear year

A

2000mm

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5
Q

Why is the soil not very fertile

A

the consistent rainfall washes all of the nutrients away

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6
Q

What is the most common tree

A

Evergreen trees

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7
Q

What percentage of the worlds biodiversity does the rainforest hold

A

around 50%

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8
Q

What is Biodiversity

A

biological variety of species and plants

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9
Q

Name 3 adaptations of plants in the rainforest

A
  1. Thick waxy leaves
  2. Buttress roots
  3. Lianas (climbing plants)
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10
Q

Name 3 adaptations of animals in the rainforest

A
  1. Flaps of skin enabling gliding
  2. Camoflague
  3. Strong limbs
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11
Q

What’s the purpose of thick waxy leaves

A

The pointed tips and wax allow surface run off meaning the plants aren’t damaged and don’t grow fungi

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12
Q

What’s the purpose of Buttress roots

A

Support the trunk of trees so they don’t fall over. Also help CO2 intake due to large surface area

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13
Q

What is the purpose of Lianas

A

Climb up to the sunlight for photosynthesis

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14
Q

What is the purpose of skin flaps

A

Enable animals to glide from tree to tree to escape predators and travel quickly

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15
Q

What is the purpose of Camouflage

A

To hide from predators

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16
Q

What is the purpose of having strong limbs and swimming abilities

A

To climb trees and catch prey

17
Q

Name 2 challenges for animals in the rainforest

A
  1. competition for food

2. Constant rainfall

18
Q

Name 3 causes of deforestation

A
  1. Logging
  2. Cattle ranching
  3. Illegal mining (Garimpeos)
  4. Highway and road development
19
Q

Name the 4 layers of rainforest

A
  1. undergrowth
  2. shrub
  3. canopy
  4. emergents
20
Q

What percentage of fresh water does the rainforest have

21
Q

What percentage of world oxygen comes from rainforests

22
Q

What percentage of medicine comes from the rainforest

23
Q

How can we sustainably manage the rainforest

A
  1. Selective logging
  2. International agreements
  3. Ecotourism
  4. Debt reduction
24
Q

what is selective logging

A

Selecting trees at a certain height so they do the least amount of damage to the environment when they fall

25
what are international agreements
countries agreeing to only buy sustainably sourced trees with an FSC stamp. This means illegal loggers can no longer sell lots of trees and stop logging
26
What is ecotourism
Living naturally in the rainforest to maintain conservation of the area and giving back to the amazonian community
27
What is debt reduction
Countries saying that if deforestation rates are lowered, the country will owe less debt