Food

Question 1

Causes of increasing food consumption

Answer 1

Rising populations (9 billion by 2030)
Lifestyle => convenience food (takeaway)
Food waste increasing
Increasing wealth => choice in food => more meat

Question 2

Factors affecting food supply : Climate

Answer 2

Drought
Floods - Gujarat India 2015 usually dry, hit with monsoon killing crops
Heatwaves
Climate change

Question 3

Factors affecting food supply : Poverty

Answer 3

LIC spend higher percentage on income on food then HIC

Question 4

Factors affecting food supply : Technology

Answer 4

Biotechnology - cross breeding to GMO plants
Mechanisation - 1940, one farmer could feed 19, modern day one farmer can feed 155
Transportation and storage

Question 5

Factors affecting food supply : Pest and diseases

Answer 5

Locusts
Diseases
Much money is used on Pesticides

Question 6

Factors affecting food supply : Water stress

Answer 6

Water needed for irrigation

75% irrigation from groundwater

Question 7

Factors affecting food supply : Conflict

Answer 7

Food fields empty as farmers go to war

Fields burned to starve the enemy

Question 8

Impacts of food insecurity : Soil erosion

Answer 8

hunger => farming on marginal land => degradation of soil

Question 9

Strategies to improve food supply : Irigation

Answer 9

Artificial application of water. Example Yuma valley Arizona
Allows dry areas to be farmed
Irrigation types : 
Flood
Drip 
Spray

Question 10

Strategies to improve food supply : Aero & Hydroponics

Answer 10

Roots in water or mist. Grows quickly. Vertical farming. Urban farming. Needs power

Question 11

Strategies to improve food supply : Blue revolution

Answer 11

Increasing consumption of sea plants in food

Question 12

Strategies to improve food supply : Green Revolution

Answer 12

Norman Borlaug father. Spread of crossbreeding and disease/pest resistance crops

Question 13

Strategies to improve food supply : Appropriate technology

Answer 13

Sand dam Makueni

Green chill refrigeration.