Landslides and avalanches are the most dramatic, sudden, and dangerous examples of earth materials moved by gravity. Landslides are sudden falls of rock, whereas avalanches are sudden falls of snow.
The answer for "What is petrified wood made of?" would be minerals.
For cities, mountains can be both a help and hindrance. Whilst mountains can be a barrier to trade and transport, they form a natural line of protection from invasion. Therefore, many ancient cities thrived when located near mountains, with the reduced risk of attack affording them time to grow and prosper
Northern, Southern, Eastern, and Western Europe are the four European regions as defined by the UN Geoscheme for Europe.
Answer: converge boundary means tectonic plates collide, and one plate slides under the other, causing subduction. divergent boundary means tectonic plates are moving away from each other.
i tried my best :0)
Explanation: my science teacher taught me this in 4th grade and i kept the notes
