Paper 2 - Section C, Food Management Flashcards
What is the recommended daily calorie intake for an adult
2000-2400 calories a day
Which countries have above the recommended daily calorie intake
Canada, USA, France, Italy and Germany
What area of the world the lowest daily calorie intake
Sub-Saharan Africa
Why do people in HIC consume more food than people in LICS
- HIC have more availability to food (due to improved transport and storage)
- HIC have high capital investments and high agricultural outputs
As levels of development increase globally, how will this affect food consumption
- increased levels of development + higher standards of living mean people can buy more food
What does food surplus mean
Countries produce more food than is needed by their population
What is food security
A country has sufficient, safe, affordable and nutritious food to maintain a healthy and active lifestyle
Why do many countries that have a food deficit and food insecurity
Because they don’t produce enough food and rely heavily on imported food
How does climate change affect food supply
- weeds and pests thrive in warmer climates
- regions experiencing extreme temperatures and heavy rainfall struggle to produce food
How does technology affect food supply
- without technology, food yields are low
- mechanisation and agribusinesses give high levels of productivity
How does rising global temperatures affect food supply
Cause pests and diseases to spread north and south of the tropics
How does lack of water affect food supply
- lack of water affects areas suffering from food scarcity, particularly sub-Saharan Africa
- areas are more likely to become drier and more desertified in future
How does conflict affect food supply
- destruction of crops and livestock -> food security -> famine and death
How does poverty affect food supply
Poorest people can’t afford any form of technology, irrigation and fertilisers
What is famine
A widespread shortage of food often causing malnutrition, starvation and death
What is under nutrition
The lack of a balanced diet, and defiency in minerals and vitamins
What are some of the causes of soil erosion
- overgrazing by animals, leaves soil exposed
- growing crops uses up valuable nutrients and land becomes infertile
- deforestation for farming removes the protective covering of the trees + increases surface run off
Why are food prices rising across the world
Due to increased prices for fertilisers, animal feed, food storage, processing and transportation
What are some strategies used to increase food supply
- irrigation
- aeroponics
- hydroponics
- biotechnology
What is irrigation
The artificial watering of land
What are the different methods of irrigation
- extraction of water from rivers or underground aquafiers
- construction of expensive dams and reservoirs
- drip irrigation, a pipeline and use of water tanks
How do aeroponics work
Plants are sprayed with fine water mist containing plant nutrients
How do hydroponics work
Plants are grown in gravel or mineral-rich water
What are the advantages of using aeroponics and hydroponics over soil
- speed up plant growth
- enables plants to grown throughout all seasons
- reduces the use of chemicals
