espere > ENC Master > Climate Encyclopaedia > People changing climate > basics > 1. Man-made climate change? > * Worksheet 1

How are
people changing
the climate?

Basics

1. Man-made climate change?

 

Worksheet 1

 

 

Can you answer the following questions?

 

1) The atmosphere is getting warmer because humans are contributing to...
a) holes in the ozone layer
b) a rise in levels of radioactivity
c) an increased greenhouse effect
d) acid rain

 

2) One of the reasons why the sea level is rising is that...
a) more rain leads to more water in the oceans
b) water expands when it gets warmer
c) icebergs in the sea are melting
d) we do not know the reasons

 

3) The most important greenhouse gas released by people is...
a) the CFC's
b) carbon dioxide (CO2)
c) methane (CH4)
d) ozone (O3)

 

4) Burning of wood and coal leads to emission of CO2. Will coal or wood contribute most to climate change?
a) none of them contribute
b) both contribute equally
c) wood
d) coal

 

5) Which of the following hasn't caused the air temperature to increase over the last 30 to 50 years?
a) nuclear power plants
b) solar activity
c) deforestation
d) emissions of greenhouse gases into the atmosphere

 

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Authors: Ellen K. Henriksen and Camilla Schreiner - University of Oslo - Norway. Scientific reviewer: Andreas Tjernshaugen - CICERO (Center for International Climate and Environmental Research - Oslo) - Norway - 2004-01-20 Educational reviewer: Educational reviewer: Nina Arnesen - Marienlyst school in Oslo - Norway - 2004-03-10. Quiz programmer: Julia Heres - University of Nürnberg - Germany. Last update: 2004-03-27.

  

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