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Flashcards in population and food Deck (21)
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1
Q

where in the world is there a population decline and why?

A

eastern European countries due to migration

2
Q

where is population growth the fastest?

A

LEDCs

3
Q

how rapidly in africa growing a year?

A

2%

4
Q

what are the key things that affect a population linked to environment?

A

climate
soils
water supply
resource distribution and geology

5
Q

how does soils determine population?

A

fertile soils ensure crop growth

eg permafrost limits this

6
Q

how does climate determine population?

A

extreme temperatures can limit population and don’t allow growth of crops or they may be inhabitable areas

7
Q

how does the distribution of resources affect population?

A

access to food, water, energy can affect where a population is situated

8
Q

how can geology/topography determine population?

A

shape of land determines the settlement of people and maybe the quality of life
favelas of slopes

9
Q

what is infant mortality rate?

A

number of deaths under one year of age among live births in a given area during a year per thousand

10
Q

what is death rate?

A

number of deaths per thousand of a population a year

11
Q

what is fertility rate?

A

number of births a women will have in her lifetime within a given population

12
Q

what has quadrupled over the last century and by how much ?

A

global population

1915=1.8 billion now=7.3billion

13
Q

how many people are expected to live in the world in 2050?

A

9.7 billion

14
Q

what is driving up global food demand?

A

rising increase in developing countries

changing diets

15
Q

what is growing too slowly for the food demand

A

crops especially in the tropics

16
Q

what factors make it difficult for food production?

A

climate change
lack of investment
development

17
Q

who may benefit from climate change?

A

russia and china

18
Q

what is having a negative effect of farming even though it is meant to be positive?

A

deforestation

clearing space but increasing greenhouse gases

19
Q

in 1960s what was the global average calorie intake?

A

2300

20
Q

in 2010 what was the global average calorie intake?

A

2800

21
Q

what is food security??

A

having access to enough nutritious and safe food to maintain a healthy lifestyle