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Exercises unit 1
Exercises unit 2
Exercises unit 3
Exercises unit 4
Exercises unit 5
Exercises unit 6
Exercises-work unit 7
Exercise unit 1 here
Exercise unit 2 here
Exercise unit 3 here
Exercise unit 4 here
Exercise unit 5 here
Exercise unit 6 here
Exercise unit 7 here
Unit 1: The Universe and our planet. Click here
Exercises unit 1. Click here
Unit 2: The geosphere. Click here
Exercises unit 2. Click here
Unit 3: The atmosphere. Click here
Unit 4: The hydrosphere. Click here
Exercises units 3 & 4. Click here
