Topic 3 - Resource Reliance Flashcards
How does mining affect ecosystems?
- destroys land meaning animals that live there are in danger and they are estoroying land
- it can destroy ecosystems by greenhouse gases being released due to the machinery which can have bad effects on plants and animals
What countrys are mostly at a extreme risk of food security?
Mostly African countries and southern Asia like Madagascar, India and Zambia.
What countrys are mostly at a low risk of food security?
Low risk countries are mostly based kn North America, Australia and most of Europe.
what is resource reliance
reasources are things that humans require for life or to make our lives easier, humans are becoming increasingly dependent on exploiting these reasources, and as a result they are in high demand
what are resources required
food
water
energy (light and heat)
why is climate not meeting modern resource demands
- global warming: effects cycles and seasons and farming
- rainfall patterns: becoming unpredictable
why is geology not meeting modern reasource demands
- not all countries have access to fossil fuels
- many minerals are finite
- rock types might limit availability to store water
why is conflict not meeting modern resource demands
- war can disrupt transport of reasources by damaging roads and water pipes
why is poverty not meeting modern resource demands
- LIDC’s are unable to afford technology to effectively exploit the natural resources availability
why is natural hazards not meeting modern resource demands
- increase in hazard events due to climate change
- prime agriculture regions in asia and africa
- has the ability to destroy infranstructure needed to transport resources
information on resevoirs and water transfers
- increasing storgae to hold more water and construct more dams to control fiver flow:
- can flood a large area
- damage habitats
- dams can be a barrrier for certian species to migrate upstream
- natural flow of sediment is disrupted which reduces fertility of land - contucting pipes and canals to divert water surplus to areas in need of water supply
- large-scale engineering works can damage ecosystems along the route
- lots of energy is required to pump water over long distances
what is food security
when people at all times need to have physical and economic access to food to meet their dietary needs for an acitve and healthy life
what is food insecurity
when somone is unsure when they might eat next
reasons of human food security
- poverty prevents people affording food
- poor infranstracture makes food difficult to transport fresh food
- conflict disrupts farming and prevents supplies
- food waste due to poor transport and storage
- climate change is affecting rainfall patterns make food production difficult
reasons of physical food security
- temperature needs to be ideal for certain crops to grow
- quality of soil is nessesary for crops to have nutrients
- water supply needs to be reliable to allow food to grow
- pest, diseases and parasites can destory many crops
- extreme weather damage crops
