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Food & Climate 

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Worksheet: Past and Present

Sheet 1: Test your knowledge
Can you answer the following questions?

1) At the moment there is a world population of ...
a) about 6 billion people.
b) about 6 trillion people.
c) about 60 billion people.
d) about 6000 trillion people

2) All these people have to be provided with food. The production of food strongly depends on the climate. The climate again is affected by certain gases in the atmosphere. What is the name of these gases, which cause a global warming on the long run?
a) Oxygen gases
b) Greenhouse gases
c) Propane gas (liquefied petroleum gases)
d) Ethane gases

3) Changes in climate also have a bearing on factors that advance the growth of plants. Which factors are most important for the growth of plants?
a) Wind, rain, clouds
b) Clouds, heat, wind
c) Cold, snow, clouds
d) Water, light, warmth

4) Why are climate conditions so important for farming, especially in developing countries?
a) There is no agriculture in developing countries.
b) In developing countries agriculture is only run in the mountains.
c) In developing countries only sensitive plants are cultivated.
d) In developing countries there are often no irrigation systems or pest control and physical main factors like soil and climate are improper.

5) Extreme weather can have a direct or indirect influence on plants. Very high temperatures for example exert directly influence on plants as ...
a) evaporation gets less and the plant dries.
b) there is no evaporation and the plant dries.
c) evaporation rises and the plant dries.
d) evaporation does not change and the plant dries.

6) Insects are very sensitive towards variations of temperature as they are cold blooded animals. How do most insects react on higher temperatures?
a) They proliferate more slowly.
b) They proliferate faster.
c) The number of insects remains the same.
d) The number of insects diminishes.

7) Why do air currents often cause damage to plants?
a) Because useful insects are taken away.
b) Because air currents bring too much rain.
c) Because rainfall is prevented.
d) Because pathogenic germs and harmful insects can be passed on to healthy plants.

8) What was the main reason for the great famine in Ireland (1846-1850)?
a) Late Blight through fungus „Phytophthora infestans“
b) Mite spider
c) Potato bug
d) High dryness

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About this page:

- Author: S. Ancot - University of Nürnberg - Germany
- scientific reviewing:
- educational reviewing: Dr. Schrettenbrunner / J. Heres
- last update: 29.10.03

 
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