Food system and the spread of disease

Question 1

Arable

Answer 1

The cultivation of crops such as wheat farming in the great plains of the USA.

Question 2

Pastoral

Answer 2

Rearing animals, for example sheep farming in the New zealand.

Question 3

Commercial

Answer 3

Products sold to make a profit such as market gardening in the Netherlands.

Question 4

Subsistance

Answer 4

products consumed by the cultivators, as in the case of shifting cultivation by Kayapo in the amazonian rain forest.

Question 5

Intensive

Answer 5

High inputs or yield’s per unit area, such as battery hen production.

Question 6

Extensive

Answer 6

Low inputs or yield’s per unit area, as in free-range chiken production.

Question 7

Nomadic

Answer 7

Farmers moving seasonally with their herds, such as the pokot, pastoralists in Kenya.

Question 8

Sedentary

Answer 8

Farmers remaining in the same place throughout the year, for example dairy farmers in Devon and Cornwall.

Question 9

Factors effecting farm activities

Answer 9

Physical

Human

Question 10

Physical

Answer 10

Climate_freq,type,intensity,amount

Soil_Fertility(Ph, cation exchange capacity, nutrient stus)

Pests _Vermin, Locusts, disease

Slope_ Gradient

Relief_ Altitude

Aspect_ Ubac (shady) or adhere(sunny)

Question 11

Human

Answer 11

Political:
Economic:
Social:

Question 12

Photosynthetic efficiency

Answer 12

A disease in which the function or structure of the affected tissues or organs changes for the worse over time.

Question 13

Energy efficiency ratio(EER)

Answer 13

The measure of the amount of energy inputs into a sy

stem compared with the outputs.

Question 14

Water footprint

Answer 14

a measure of how much water is used in human activities, such as producing food.

Question 15

Disease diffusion

Answer 15

refers to the spread of a disease into a new locations

Question 16

Expansion diffusion

Answer 16

occurs when the expanding disease has a source and diffuses outwards into new areas.

Question 17

Relocation diffusion

Answer 17

occurs when the spreading disease moves into new areas, leaving behind its origin or source of the disease.
eg. a person with AIDS moving to a new location.

Question 18

Contagious diffusion

Answer 18

is the spread of an infection disease through direct contact of individuals with those infected.

Question 19

Hierarchical difffusion

Answer 19

phenomenon spreads through an ordered sequence of classes or places, for example from cities to large urban areas to small areas.

Question 20

Network diffusion

Answer 20

occurs when a disease spreads via transportation and social networks . again, the spread of aids in SA along transport routes.