resource management

Question 1

what is food security

Answer 1

when people are able to eat enough nutritious foood to stay healthy and active

Question 2

what is food insecurity

Answer 2

when people cant get enough food to stay heathly

Question 3

what is too main reasons why food consumption is increasing

Answer 3

• growing population
• economic development

Question 4

why is the growing population a reason why food consumption is increasing

Answer 4

• becuase the global poplation is increasing - predicted 9 billion by 2040 - more people require more food

Question 5

why is economic devlopment a reason why food consumption is increasing

Answer 5

• countries are becoming wealther - wealthy people have more disposable income to spend for food
• wealthy countries can afford to import food all year around
• industrilisation of agriculture means countries are able to produce food on a quicker scale

Question 6

how does the climate affect food supply

Answer 6

• unsuitable cilmates for example too cold cant grow much food

Question 7

how does water stress affect food supply

Answer 7

• little rain fall means crops struggle to grow menaing less food is produced

Question 8

what physical factors can food supply be affected by

Answer 8

climate
water stress
pests and disease

Question 9

what human factors can food supply be affected by

Answer 9

poverty
technology
conflict

Question 10

how does poverty affect food supply

Answer 10

people in poverty dont have own land to grow foods
- global scale - cant import food

Question 11

how does technology affect food supply

Answer 11

• mechanisation of equiptment e.g tractors increases farming more efficent
• genetic engeneering cant make increase yeilds

Question 12

how does conflict affect food supply

Answer 12

• damage land
• access for food becomes difficult for those fleeing their home
• difficult to import food - trade routes distrupted

Question 13

whata re the negitive impacts of food insecurity

Answer 13

• famine - leads to starvation and death
• undernutrtion - if people dont have a balanced diet they can become ill - stunted growth
• soil erosion
• rising food prices- not enough food avaliable food prices rise becuase demands for food increase
• social unrest- cause riots and may contribute to civil war

Question 14

what is irrigation

Answer 14

artificially watering the alnd - make dry areas more productive or to increase the number of harvests and the yeild

Question 15

what ar ethe three main types of irrigation

Answer 15

gravity flow - digging ditches to transport ground water to fields
sprinklers - spraying water on feilds
drip systems - dripping water from small pipe directly onto soil around plants

Question 16

what are hydroponics and aeroponics

Answer 16

methods of growing plants without using soil

Question 17

what happens in hydroponics

Answer 17

• plants grow in nutrient soultion supported by materials
• monitered closey and adjusted to maximise crop yeild
• less water required than when plants are in soil
• HOWEVER- very expensive so methods only used for high value crops

Question 18

what happens in aeroponics

Answer 18

• plants are suspended in the air, water containing nutrients is sprayed on the roots, water drips off roots and is used again
• monitered closey and adjusted to maximise crop yeild
• less water required than when plants are in soil
• HOWEVER- very expensive so methods only used for high value crops

Question 19

what is biotechnology

Answer 19

genetically engineering crops to improve production
- allow more to be grown in smaller areas with fewer resources

Question 20

genetically modified crops can be designed to have…

Answer 20

• heigher yeilds
• resistance to drought, disease or pests
• higher nutritional values

Question 21

what are ethnical and enviromental concerns of gentically modifed crops

Answer 21

-reduces bio diversity as fewer varities of the crop are planted
- may interbreed with wild plants and distrpt ecosystems

Question 22

what is the new green revolution

Answer 22

aims to increase yeild using sustainable methods like:
- gentically modified crops
- tradtional and organic farming like soil nutrient recycling,crop rotation and using natural redators to control pests