Strategies to manage food supply

Question 1

What is irigation?

Answer 1

Artificially watering crops using sprinklers

Question 2

What is appropriate technology?

Answer 2

The change of local farming methods to increase the production of food

Question 3

What is the green revolution?

Answer 3

The use of technology like fertilizers, and pesticides to increase crop yield

Question 4

What is aeroponics?

Answer 4

Grows crops using mist to add nutrients rather than growing crops in soil

Question 5

What is hydroponics?

Answer 5

Grows crops using water filled with nutrients rather than growing crops in soil

Question 6

What is biotechnology?

Answer 6

Genetically modifying crops to make them more resistant to diseases and droughts, to make them grow faster or to produce more nutrients.

Question 7

What is the blue revolution?

Answer 7

Focuses on increasing the production of fish both in land and at sea

Question 8

Advantages of irrigation

Answer 8

• countries with little rainfall can still grow crops
• saves money and time
• can double food production even when there is drought

Question 9

Advantages of appropriate technology

Answer 9

• everyone of any ability can use this
• an easier way for agriculture to develop
• provides jobs for people which anyone can have

Question 10

Advantages of the new green revolution

Answer 10

• doubled rice production in the 1960s
• helps areas with extreme floods and droughts, impacts of global warming
• helps the poorest areas of the world

Question 11

Advantages of aeroponics

Answer 11

• crops can be produced without soil
• less resources needed than usual farming techniques
• creates job opportunities

Question 12

Advantages of hydroponics

Answer 12

• crops can be produced without soil
  Advantages - they grow quicker in he nutrient rich water
• creates job opportunities
• uses less water and cannot be affected by diseases from soil

Question 13

Advantages of biotechnology

Answer 13

• improves crop yield
• helped to increase incomes and creates job opportunities
• easier and takes less time for the crops to grow
• food security has been increased across the world

Question 14

Advantages of the blue revolution

Answer 14

• increases the production of fish
• in india, fishing is one of the biggest industries

Question 15

Disadvantages of appropriate technology

Answer 15

• it is quite new so we don’t know whether it is worth the time
• may not make a difference on large scale
• it only really fixes small-scale problems

Question 16

Disadvantages of the green revolution

Answer 16

• soil erosion from the repetitive production of one crop
• soil pollution from chemicals used
• the crops needed a lot of expensive fertilizers so farmers have to borrow money
• led to a rise in suicide rates in India in the late 1960s as they were badly in debt

Question 17

Disadvantages of irrigation

Answer 17

• decreased water quality
• water pollution from chemicals used
• makes water shortages worse

Question 18

Disadvantages of aeroponics

Answer 18

• high level of monitoring and maintaining needed
• there is also high initial costs for this technique
• needs electric to work so power cuts can kill the plants
• they can be very noisy especially in inclosed environments

Question 19

Disadvantages of hydroponics

Answer 19

• high level of monitoring and maintaining needed
• there is also high initial costs for this technique
• needs electricity to work so power cuts can kill the plants
• the plants can get diseases from the water they are grown in
• problems such as extreme temperature and diseases affect the plant quicker

Question 20

Disadvantages of biotechnology

Answer 20

• has been known to cause cancer in some cases
• can also causes other viruses
• can be taken up by other cells and affect the human DNA
• can be lethal and are hard to notice as they are microscopic

Question 21

Disadvantages of the blue revolution

Answer 21

• diseases can wipe up all fish and species in the area
• damage to coastlines

Question 22

Give an example of where hydroponics systems are used

Answer 22

Thanet Earth in Kent

Question 23

Give an example of where aeroponics systems are used

Answer 23

Thanet Earth in Kent

Question 24

Give an example of where appropriate technology is used

Answer 24

Areas of Asia and Africa have introduced the ‘Full Belly project’

Question 25

Give an example of where the green revolution was used

Answer 25

India in the 1960s and the 1970s

Question 26

Give an example of where irrigation is used

Question 27

Give an example of where the blue revolution is used

Question 28

Give an example of where biotechnolgy is used