Lecture 18

Question 1

What are 3 global long term problems and challenges in regards to food production?

Answer 1

1) Be able to feed the current 7.5 billion people we have currently
2) Be able to feed the 8,9,10 billion people we will have in the next 30-40 years
3) Be able to succeed in challenge 1 and 2 without destroying the worlds ecosystems

Question 2

Healthy soil is what

Answer 2

a complex mix of inorganic and organic material

Question 3

What are the 4 things soil is made out of

Answer 3

a) Clay
b) Silt
c) Sand gravel
d) Organic matter

Question 4

What are the 3 biggest issues with soil erosion ?

Answer 4

a) Wind
b) Water
c) Overgrazing

Question 5

Crops can only grow in ___ ____

Answer 5

top soil

Question 6

Define desertification according to this lecture

Answer 6

The tree and plant cover that binds the soil is removed

Question 7

Animals erodes the top soil with what

Answer 7

their hooves

Question 8

Intensive farming depletes what from the soil

Answer 8

nutrients

Question 9

How many hectares are lost every year

Answer 9

12 million

Question 10

Where do soil nutrients typically end up?

Answer 10

in cereals or lumber

Question 11

How do we replace soil nutrients

Answer 11

With fertilizers that are made up of fossil fuels

Question 12

What three things run the food processing plants

Answer 12

a) Electricity
b) Oil
c) Natural gas

Question 13

What is the chemical feedstock for making nitrate fertilizers

Answer 13

Natural gas

Question 14

What is the chemical feedstock for the pesticide industry

Answer 14

Petroleum

Question 15

For each unit of energy produced up to ___ X Fossil fuels are used

Answer 15

10x

Question 16

Around the globes, ground water reduction is about ____ a year

Answer 16

1 meter

Question 17

Natural replacement of ground water is about ____ a year

Answer 17

10 to 50 cm

Question 18

Cities were originally placed in areas that were what

Answer 18

great areas to farm

Question 19

True or False; Once farmland is converted into roads or buildings, that land can be converted back to farmland

Answer 19

False

Question 20

What are 6 organisms that destroy between _____ and ____% of total agricultural output?

Answer 20

a) Rats
b) Mice
c) Insects
d) Birds
e) Bacteria
f) Fungus

30-40%

Question 21

True or false; Organisms destroy more agricultural output in LDC’s

Answer 21

True

Question 22

Approximately _____% of what the Canadian Agriculture generated in 2014 got wasted

Answer 22

30%

Question 23

In 2014, ___% of total food produced on farms was lost

Answer 23

10%

Question 24

in 2014, ___% of total food produced during processing was lost

Answer 24

20%

Question 25

in 2014, ___% of total food produced during transportation and distribution was lost

Answer 25

4%

Question 26

in 2014, ___% of total food produced at restaurants and hotels was lost

Answer 26

9%

Question 27

in 2014, ___% of total food produced for retails was lost

Answer 27

10%

Question 28

in 2014, ___% of total food produced for consumers was lost

Answer 28

47%