What I already know is that the earth goes through changes that can be good or bad for those that live here on earth. The Earth has plates that move all the time which causes the top surface of the earth to change. this it could be disastrous for those who live on the earth's surface the plates movement is called plate tectonics. I also know that there was the belief that the continents were at one point one super continent called Pangea and a German scientist named Alfred Wegener who believed that the continents were father apart than they originally were so he came up with the continental drift theory the belief that the continents are drifting father apart over time.
What I learned from my research
What I learned from my research is glacial erosion I didn't know that there were three different types of glacial erosion. Glaciers erode in three different ways such as plucking,abrasion, and the ice freezing and re-thawing.
What I had questions about
My question is if topographic maps are updated regularly or do scientist update them every few years.