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- A blackboard is a commonly used equipment in schools.
- It is a huge surface on which we can write with chalks.
- It is made of fibre or wood.
- It is then painted with black colour.
- This is so that the white chalk appears prominent.
- Blackboards can be dark green in colour as well.
- Blackboards help teachers teach.
- Teachers can write things on a blackboard for the whole class to see.
- These days blackboards have been replaced with whiteboards.
- This is because the chalk dust created by writing on blackboards is very bothersome.
