Explanation:
he has done this because British people recognise the name David more as it is common in the UK.
I would go with D, because acid can be reduced by using it less
The answer is B because A eventually becomes blocked, C has no way of getting wind because of A and, B is at a higher point and does not become blocked! hope I helped :):):):):)
The body of water that your looking for is the Black sea!
