Answer:
They release Carbon Dioxide (CO 2)
Medicine and safety regulations at the work place.
Personally I would say it's A (apart from the installation costs which may make it a little expensive) but it does involve certain aspects of D also as wind energy doesn't cause pollution. So either A or D!
Hope I was of help! :)
Answer:
E
Explanation:
for 20 minutes water isnt going to change pennies but vinegar and hydrochloric acid would make a diffrence because they are acidly or something