I'm pretty sure it's railroads, because there's not that many highways in Siberia, the rivers would be frozen over, and there's not a ton of people in Siberia. I'm sorry if I'm wrong.
<span>The correct answer here is drought. A drought is when there is a shortage of water, due to a long period of time in which there if far less rainfall than would normally be expected in any one area.</span>
I'd have to say gas because it usually doesn't change at all
Answer: North America, South America, Antarctica, Europe, Africa, Asia, Australia
The Earth is made mostly of it. Explanation; Water is the most important erosional agent and erodes most commonly as running waterin streams. However, water in all its forms is erosinonal
Answer is running water
