Ppt B3.4.2 Deforestation and the destruction of areas of peat

Report
B3.4.2 Deforestation and the destruction of areas of
peat
GCSE items that can be used to define successful outcomes
for peer and self assessment activities
•
B3.4.2 Deforestation and the destruction of areas of peat
Using Exam pro items to support successful
outcomes
Learners will be able to test their progress against learning
outcomes using questions taken from past AQA GCSE
examinations.
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Exampro QA05SF.02
The picture shows a forest being cleared so that rice can
be grown. The trees are chopped down and then burned.
(a) Complete the sentences by using the correct words from
the box
acid rain
carbon dioxide
the greenhouse effect
methane
sulphur dioxide
Burning trees give off the gas ............................................................................ .
The rice crop will increase the amount of the gas .................................. in the
atmosphere. These two gases help to cause
………………………………………………………..(3)
(b) Burning fossil fuels also causes pollution.
Name one fossil
fuel..................................................................................................(1)
(Total 4 marks)
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(a)
carbon dioxide 1
Methane 1
greenhouse effect 1
(b)
coal / oil / gas / peat / petrol / paraffin
1
[4]
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(a)
The world-wide use of fossil fuels has increased rapidly during this century.
(i)
Give two reasons for the increase in the amount of fossil fuels used.
1 ........................................................................................................................
2 ........................................................................................................................ (2)
(ii)
Give two effects on the environment of this increase in the amount of fossil fuels
used.
1 ........................................................................................................................
2
……………………………………………………………………………………………………
…….. (2)
(b)
Describe and explain the long term effects of large-scale deforestation on the
Earth’s atmosphere.
.....................................................................................................................................
…………………………………………………………………………………………………………
…………... (4)
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(Total 8 marks)
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licensors. All rights reserved.
(a) (i)
2 of:
increase in population
increase in living standards
example
any 2 for 1 mark each
2
(ii) pollution effects OWTTE
destruction of habitats by extraction methods
gains 2 marks
(allow 2 pollution effects)
2
(b) 4 of e.g.
trees can no longer photosynthesise
removing carbon dioxide from atmosphere and ‘locking it away’ long term
increased carbon dioxide concentration leads to more
absorption of reflected energy atmosphere therefore warms
any 4 for 1 mark each
4
[8]
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