[Grammar] Coal has been used as a heating device ...

[adrenalinman]

Coal has been used as a heating device since ancient times.It is a solid fossil fuel
-Coal, which is a solid fossil fuel, has been used as a heating device since ancient times
Is this reduction correct?: Coal, a solid fossil fuel, has been used as a heating device since ancient times

 

[Tdol]

Re: reduction of relative clause

It's fine, but check the punctuation at the end.

 

[Rover_KE]

Re: reduction of relative clause

I'm not sure you can call coal a device.

You have a bad habit of failing to end every sentence with a punctuation mark. I hope you insist that your students do so.

***

Please note that I have changed your thread title.

Extract from the Posting Guidelines:

'Thread titles should include all or part of the word/phrase being discussed.'

 

[emsr2d2]

On the single occasion that you did remember to use a full stop in post 1, you failed to put a space after it.

 

[Rover_KE]

I'd change 'a heating device' to 'fuel'.

 

[adrenalinman]

Thank you but can you offer another word for this as 'fuel' is used twice in that way?
a means of heating could be approppriate?

 

[tzfujimino]

a means of heating could be approppriate?

Yes, I believe so.

 

[teechar]

"Coal has been used for heating, etc."

 

[adrenalinman]

These are the alternatives I have found with your help.Now can you please tell me which one is the most appropriate?
-Coal, which is a solid fossil fuel, has been used as a good energy source since ancient times
-Coal, which is a solid fossil fuel, has been used as a means of heating since ancient times
-Coal, which is a solid fossil fuel, has been used for heating since ancient times
-Coal, which is a solid fossil fuel, has been used as a heat source since ancient times

 

[emsr2d2]

Could "a means of heating" [STRIKE]could[/STRIKE] be appropriate?

See above.

 

[jutfrank]

These are the alternatives I have found with your help.Now can you please tell me which one is the most appropriate?

Please be sure to put spaces between sentences.

 

[adrenalinman]

These are the alternatives I have found with your help.Now can you please tell me which one is the most appropriate?
-Coal, which is a solid fossil fuel, has been used as a good energy source since ancient times
-Coal, which is a solid fossil fuel, has been used as a means of heating since ancient times
-Coal, which is a solid fossil fuel, has been used for heating since ancient times
-Coal, which is a solid fossil fuel, has been used as a heat source since ancient times

 

[Rover_KE]

They are all appropriate.

Now insert a punctuation mark at the end of every sentence.