Trees can also be the core of the farming system eg olive apple chestnut trees or green oak of dehesa or helping to optimise the production system eg oak beech and ash trees of hedgerows

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Trees can also be the core of the farming system (e.g. olive, apple, chestnut trees or green oak of dehesa) or helping to optimise the production system (e.g. oak, beech and ash trees of hedgerows).
In a reverberant room with disturbing background noise it can be difficult to pick up speech

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In a reverberant room with disturbing background noise, it can be difficult to pick up speech.
The third party component AddThis is used on eu2012dk AddThis makes it easy for users of eu2012dk to share articles and other pages via social networks and email AddThis uses cookies but none of these include personally identifiable information

Can you repeat this sentence, but add in punctuation?
The third party component AddThis is used on eu2012.dk. AddThis makes it easy for users of eu2012.dk to share articles and other pages via social networks and email. AddThis uses cookies, but none of these include personally identifiable information.