living world tropical rainforests

Question 1

what are the physical characteristics of a tropical rainforest?

Answer 1

warm temperatures, heavy rainfall, infertile soil, dense vegetation, indigenous people who have adapted to their life there are survive by hunting, fishing and growing crops.

Question 2

how are plants adapted to the climate?

Answer 2

tall trees reach the sunlight, Drip tip, waxy leaves so water drains off, Thick buttress roots to hold tall trees steady, Climbing plants which use tree trunks to get to light.

Question 3

how are animals adapted to the climate?

Answer 3

Gripping tales to live in the canopy, Camouflage to hide in the shrub layer, Suction pads on feet to grip trees, Nocturnal to avoid heat of the day, Strong bills on birds to crack nuts.

Question 4

what is biodiversity?

Answer 4

IS The variety of plant and animal pieces in an ecosystem. It is high in the topical rainforest.

Question 5

facts about the tropical rainforest!!

Answer 5

The tropical rainforest contains 50% of the animal pieces; ‘green lungs of the world’-28% of the worlds oxygen comes from the rainforest.
Absorbs and stores carbon dioxide, regulating the climate25% of medicines come from the rainforest plants; important souses of clean water.

Question 6

What is deforestation?

Answer 6

It is the cutting down of trees, usually large scale

Question 7

Case study

Answer 7

Amazon rainforest in South America. 750,000km2 has been deforested!!

Question 8

Case study : causes

Answer 8

65-70%: Commercials. Cattle farming.
50-25% small scale subsistence farming.
5-10% commercial farming soy beans.
2-3% logging.
1-2% other activities including mining, urbanisation, energy- hydroelectric, dams and reservoir

Question 9

Car study : Economic impacts

Answer 9

+ creates jobs for local people( mine in Peru employees 3100)
+ economic growth from selling goods ( $6.9billion in 2008 from cattle in Brazil)
+ taxes being paid to improve pubic service ( health and education)
+ hydro electric power and renewable.

• destroys livelihoods of indigenous people

Question 10

Case study: Environmental impacts

Answer 10

• loss of biodiversity.
• increase in CO2 in the atmosphere = climate change.
• soil erosion leads to flooding and landslides.
• soil fertility decreases ( no canopy to protect the soil and nutrients wash away)
• pollution from industries.

Question 11

what are the strategies that help to maintain the tropical rainforests?

Answer 11

selective logging and replanting.
conservation and education.
ecotourism and international agreement.
debt reduction.

Question 12

Care study: environment

Answer 12

• loss of biodiversity
• increase in CO2 in the atmosphere = climate change
• soil erosion leads of flooding and landslides
• soil fertility decreases (no canopy to protects the soil and nutrients wash away)
• pollution from industries