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5. Word Formation

1. Recycling your waste helps reduce pollution.
2. The WWF fights against the destruction of the natural world.
3. The town is raising money for the conservation of the historic building.
4. The earthquake caused an explosion in the city.
5. There will be a reduction in staff.

7. Ask and answer

A: Why is the steppe a treasure?
B: The steppe is a treasure as it is full of natural resources.

6. Clauses of reason/result

• because + clause; because of + noun / -ing
• since / as + clause
• due to / as a result of + noun
• Reason: because / since / as
• Result: so / such … that