geography mock 2 Flashcards
what is a push factor
- a factor that encourages people to leave an area
give 6 push factors
- lack of healthcare
- only basic education
- war and conflict
- farming is hard and poorly paid
- fewer jobs
- droughts and other climate hazards-reduce crop yield
what is urban greening
the process of increasing and preserving open spaces such as public parks and gardens in urban areas
how much of greenspace is in london
london is the 3rd greenest city of its size in the world
- 1st in europe
- 60%
what are the benefits of urban greening
- improve air quality(promotes bikes and trees take in air and help to regulate temperatures)
- trees act as drainage(reduce risk of flood from the surface run off ,created habitats)
- help health(place for excerise,improve mental health,happier,improved air quality)
- increase toursim(gardens/public parks are free to visit,important for visitors)
- good social activities(increase community,social activities)
-habitats(home to 13,000 species)
how does urban greening help the city
helps the city to adapt to CC as trees absorb co2
how many trees are in london
8.3 million
how does urban greening help with food production
- 30,000 allotments
how else has london used urban greening
green roofs and walls are an essential component of a greener,denser city- help store water,create habitats and greener areas eg.roof gardens
what is good about using renewable energy
- good as they wont run out and produce no waste products and no green house gas emmissions
explain solar power
- energy from the sun
+ excess energy can be sold - expensive,depne don sunlight which is unreliable
explain tidal energy
-currents turn turbines
+ can be reliably predicted
- exoensive,cant generate constant energy
explain wave energy
-changing water levels turn turbines
+ usable during winter
- expensive,can harm marine life
explain wind power
- wind pushes a big turbine,built on land or sea
+ no emissions once built - unrelaible,cant generate it all the time
why is it goodto use renewable energy in london
- uk ff are running out
- over 38% of elecricity made by renewables in 2022 in the uk