Section 2 - Rainforests Flashcards

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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

A

20%

21
Q

What percentage of world oxygen comes from rainforests

A

28%

22
Q

What percentage of medicine comes from the rainforest

A

25%

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
Q

what are international agreements

A

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
Q

What is ecotourism

A

Living naturally in the rainforest to maintain conservation of the area and giving back to the amazonian community

27
Q

What is debt reduction

A

Countries saying that if deforestation rates are lowered, the country will owe less debt