Urban settlement increases carbon dioxide emissions by A. Expanding the use of public transformation
B. Generating more factories
C. Increase the need to drive
D. Resulting in more tree growth

B

Explanation:

I guess the answer should be B. Factories produce lots of smoke that when go into contact with the sun, turns into ozone.

Then, ozone is a greenhouse gas.

81 is a composite number.

the proximity of water was an advantage to western europe and its culture was able to flourish as a result. trade and travel by sea were easier and safer in historical times.

1. there are no mountains to protect it from the sea

2. and its has wet cool summers and wet, mild winters.