C. Protractor is used to determine the exact location you are in using longitude and latitude
Answer: How explosively or quietly a volcano erupts is not affected by the:
C) concentration of dissolved gases in the magma.
Explanation: Therefore, when a volcano is explosive or less explosive, is as a result of the composition of magmas in different areas or location.
Answer: north
Explanation:The Middle East and North Africa are two regions that are often grouped together because they have many things in common. Islam is the dominant religion in the area and almost everyone speaks Arabic. Most of the Middle East and North Africa is composed of desert land where very little rain falls.
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:Geographic featured that acted as norther borders of the Roman Empire at its height were: Rhine River, Danube River, Carpathian Mountains, and the Black Sea.