geography exam questions style y8 Flashcards
how much rainfall might you expect per year in a desert
20mm
how much rainfall might you expect per year in a rainforest
2000mm
list 4 ways a cactus adapts to its enviroment
spikes- to protect from animals that want to eat it for it’s water source
very thin leaves- as it does not want to much water to transpire
stem stores water- a storage of water for the dry season
roots- anchor it to the ground
what is deforestation explain 3 reasons why it is occurring
deforestation is the cutting down of trees. it happens in the rainforest because:
- cattle ranching- herds of cattle need places to stay and eat grass, so they can be used for beef companies
- timber production- people cutting down trees for their wood to sell it and make things like houses, and money for workers
- mining - big companies want to reach valuable minerals and ores. so they chop down trees for space to do this. this is to make money
common theme all for money
what is the definition of emergent in trees
emergent - the taller layer of trees that force their way to the top for light and photosynthesises
what is the definition of canopy in trees
canopy - the average layer of trees that are there for light and photosynthesis
what is the definition of lianas
lianas - parasites that use other trees to get to the top for photosynthesis. steal trees nutrients and water
what is the definition of shrub layer
shrubs - the layer of shrubs and bushes they do not get as much sunlight so dont grow.
what is the definition of buttress roots
buttress roots - big overgrown root supporting really tall ( top heavy trees) trees
what is the definition of under canopy
under canopy - the lower level of trees that get some light for photosynthesis but emergent and canopy block out most light
what is the definition of drip tips
drip tips - shape of leaves so water can drip off them to allow transportation and photosynthesis
what is the definition of umbrella crown
umbrella crown - branches and leaves only at the top of trees as too dark below canopy for light
what is GDP
GDP is gross domestic product it is the value of goods and services produced within the country
what is adult literacy
it is the percentage of adults who can read and write within a country
what do children in poorest rural areas do
they dont go to school as they are working on farms
what do countries with high GPD and high literacy rate show us
- they can afford the education
- they are likely to have jobs
- they are more likely to be able to provide for there future children
what counties will lower GPD and low literacy rate show us
- they cant afford the education
- cant get well payed jobs ( as they cant read or write)
- they will struggle to provide for there future generations
what does HDI stand for
Human development index
name a type of LEDC
high infant mortality rate.
name a type of MEDC
low population growth
how are tempretures diffrent across the earths surface?
the tempretures are diffrent as ir tis hotter near to the equator this is because the lower the latitude the less atmosphere it has to pass through therefore the sun rays are more condense
state 2 factors that can effect tempretures ( apart from latitude)
higher land is cooler
cloudy tempreture reduces temp
how can the angle of sun rays effect a diffrence in tempreture
the angle of sun rays cause this diffrence in tempreture because if the rays are directly overhead at 90 degrees it will be warmer and if the sun rays are coming in at 45 degrees they have a further distance to travel therefore it is cooler.
In the summer, the sun is directly overhead and its rays hit the earth directly. In the winter months, the sun sits lower on the horizon. This causes the rays to hit the earth at an angle.
