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Factors that will lead to demand exceeding supply of food and water.
Rising the Population, economical developments,
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How are environments and ecosystems modified by humans.
Humans rely on natural ecosystems to provide many ‘ecosystem services’- such as pollination of crops, and cleaning air and water. Humans also rely on ecosystems to provide them with fertile soil, mineral nutrients, fish and game.
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What is food security?
the state of having reliable access to a sufficient quantity of affordable, nutritious food
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Factors that affect food security.
bigger population numbers, More income and more extreme weather.
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The theories of Malthus.
the rate of population growth was faster than the rate that food supplies could grow. In time, there would not be enough resources for everyone.
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The theories of Roserup.
if you need it, someone will invent it. So if more food was needed she wrote that people would invent ways of increasing food supply
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Card 2

Front

How are environments and ecosystems modified by humans.

Back

Humans rely on natural ecosystems to provide many ‘ecosystem services’- such as pollination of crops, and cleaning air and water. Humans also rely on ecosystems to provide them with fertile soil, mineral nutrients, fish and game.

Card 3

Front

What is food security?

Back

Preview of the front of card 3

Card 4

Front

Factors that affect food security.

Back

Preview of the front of card 4

Card 5

Front

The theories of Malthus.

Back

Preview of the front of card 5
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