Karteikarten
Ecosystems & Tropical Rainforests
Karten in diesem Stapel (35)
- 1What is a Consumer?A Consumer is an organism that gains it energy via eating( consuming) other organisms.
- 2What is a Producer?A Producer is an organism that gains it energy from a" primary source" e.g. through photosynthesis using sun light.
- 3What is a Decomposer?A Decomposer is an organism that breaks down dead plant and animal matter.
- 4What is the difference between a Food Chain, and a Food Web?A Food Chain shows only 1 way that the energy is flowing whereas a Food Web shows all links between producers and consumers in an ecosystem.
- 5What is meant by the term" Trophic Level"?The position a group of organisms are at in a food chain e.g. the energy moves form one trophic level( The Algae) the the next one( The Midge Larva). This is commonly represented as an arrow.
- 6What does Abiotic mean?The non-living factors of an ecosystem e.g. temperature/rainfall.
- 7What does Biotic mean?The living factors of an ecosystem e.g. animals/plant.
- 8What is an Ecosystem?An Ecosystem is how the Biotic and Abiotic parts of an area interact with one and other. The sizes of an Ecosystem can vary.
- 9What does interrelationships mean?How different factors support each other.
- 10What is Nutrient Recycling?Nutrient Recycling is how nutrients move between organisms and the environment.
- 11Give an example of a food chain in a Pond Ecosystem?Algae-->Midge Larva-->Great Diving Beetle -->Fish-->Herron
- 12Give 2 examples for why energy is lost at each level in a Food Chain.1. The organism isn't fully consumed.
2. Energy is used up for movement.
3. Energy is used for respiration.
4. Energy is lost in Excretion. - 13What are the characteristic in a Pond Ecosystem?Light intensity, amount of Oxygen, amount of shelter and what the main components are e.g. Producers/consumers.
- 14What is Detritus?Decaying Leaves
- 15What is litter in an ecosystem?Dead Biomass that has fallen to the ground.
- 16What is Biomass in an ecosystem?Biomass is all the living parts e.g. plants/animals.
- 17What is the Nutrient Cycle?Biomass ---> Litter ---> Soil ---> Biomass
Repeat - 18Explain how the Nutrient Cycle works in the rainforest.The humid atmosphere is a perfect condition for decomposers to break down litter which then put the nutrients into the ground. These nutrients are then taken up by the biomass using the soil. The biomass then eventually dies and fall to the litter layer.
- 19Why are decomposers so important?Because they help put the nutrients back in the ground by breaking down litter.
- 20What is a biomeA biome is a large scale ecosystem.
- 21When did deforestation become most apparent.Deforestation first had a noticeable impact on the environment in the 1900s.
- 22Why is it hottest at the equator?It is hottest at the equator because solar radiation reflects off the earths surface and due to the angle the sun's rays hit the earth, the rays just bounce straight back up meaning the heat is spread over a small surface area.
- 23Name 3 reasons tropical rainforests occur at the equator.1. The heat builds up causing the rain to evaporate into the sky.
2. The altitude at the equator means an increased temperature.
3. The ocean currents bring warm water increasing the temperature. - 24How many large expanses of rainforest are there?3 which are found in South America, Africa and Australia.
- 25What percentage of the Earth's surface is covered by rainforest?6%
- 26What percentage of the world's biodiversity is located in rainforests?60%
- 27How many layers are there in a rainforest( what are they)?There are four layers; The Shrub, The Under Canopy, The Canopy and The Emergent Layers.
- 28What is an Epiphyte?An Epiphyte is a plant that can live without soil and exists on the branches of other plants in order to get the most sunlight.
- 29What are the two reasons for deforestation?Exploitation of Resources and Clearing out space for other projects.
- 30Since 1970 what percentage of The Amazon Rainforest has been destroyed.20%
- 31What is the main reason for deforestation?Commercial farming(used to grow cattle).
- 32Name 3 other reasons for deforestation?1. Logging
2. Mining
3. Hydroelectric Power
4. Subsistence Farming
5. Road Building
6.Settlement/Population Growth. - 33How many countries have rainforests?63
- 34How much rainfall in the Amazon Anually?Between 2000mm-2500mm per year roughly.
- 35What are the two impacts of deforestation categorised into?Global and Local
Informationen
- Beschreibung
- GCSE Geography Karteikarten am Ecosystems & Tropical Rainforests, erstellt von Lewis Green am 02/10/2022.
- Erstellt von
- Lewis Green
- Aufrufe
- 9
- Bewertung