Homework+Ozone+depletion

1) Firstly, if you haven't already done this in the previous section make sure to read the following on acid rain Acid rain - Why is it a concern?

make sure to be able to outline i) what acid rain is. ii) what causes it (you need to know the simple word equations) iii) outline main the effects of acid rain

start by watching this You Tube video [|The Antarctic Ozone Hole] You Tube (covers most of the syllabus points)
 * Ozone**

2) **Outline** the way in which chlorofluorocarbons and other halides can reduce the percentage of ozone in the stratosphere read text book pages 168-169 answer questions 1-6 page 170) for question 6 use this web site [|History of the Ozone Hole]

3) **Summarise** the evidence for ozone depletion and the role of **Australian scientists** in this ongoing research

[|HSC online is good for this]

4) **Gather** information from secondary sources to **summarise** the uses of CFCs and other halides and describe the ways in which their use is being phased out and alternative products being used. [|The ozone hole CFCs] answer activities 1-5 page 173 of text

5) G**ather** and **analyse** information from secondary sources to **evaluate** –one international strategy aimed at reducing ozone depletion text book pages 170-171 [|Montreal Protocol] [|The Montreal Protocol] [|Ozone Depletion]