Resource Reliance Flashcards
Why is consumption of goods increasing
Rising population
Economic development
What is the mechanisation of farming
Since 1960s there has been growth in large scale industrial farming where processes have been done by machines
Give two disadvantages of mechanisation of farming
Amount of chemicals has affect environment
Heavy machinery causes soil erosion
What is commercial fishing
Large scale fishing such as trawling
Give 2 disadvantages of commercial fishing
Overfishing
Damaging sea floor habitats
Why is deforestation increasing
Demand for energy is increasing
Give two environmental impacts of deforestation
More CO2
Habitats and species lost
Why does mining affect the environment
Fossil fuels are removed from ground
Surface mining
What is surface mining
Where large areas of vegetation are stripped away so miners can mine
How do reservoirs provide reliable water supply
Seasonal variations can cause water shortages
Building a dam traps & increase water storages
What is food security
When people have access to enough nutritious food to stay healthy
Give two examples of
Physical factors affecting food security
Climate
Pests and diseases
Give two human factors affecting food security
Food prices
Overconsumption
What is Malthus theory
Thought that population would increase faster than food supply. When there would be too many people there would be a catastrophe
What is boserups theory
However big the worlds population grew, people would always produce sufficient food
