Question

Write to answer the following two questions:

An Increasingly Dynamic Earth Surface Most landforms in 2050 will geomorphic processes, and that is likely to grow look much the same as they eroded at rates of millimeters cades they will not change very (Figure 3-4-1). In addition, significant climate change channel being about the right size for the water it car- will see this as an increase in stream bank erosion, or do today. Mountains rise or are tends to destabilize landforms. Instead of a stream per year or less, so in a few de ries, it may become too small or too large. Humans much. Earthquakes and volcanic change in the meandering behavior of a stream. In eruptions, sometimes catastrophic, areas where heavy rainfall becomes more frequent, erosion problems will be more severe, and if there will occur from time to time, as they do today. On the other hand, the rates of are steep slopes prone to sliding then landslides and some geomorphic processes may be greatly mudflows will likely be more common. And, as we are accelerated. As human population grows, agri already seeing, coastal change-mainly erosion-will be a much more widespread problem, affecting the cultural production must increase, and houses must be built. Humans already move more earth than natural growing numbers of people who live near coasts. Figure 3-4-1 Constructing an artificial island off the coast of Dubai

1. On Page 133, you will see a very brief description of what our earth will look like in 2050. Based on the information given, what do you think our earth will look like at that time? Why do you think so?

2. Mount St. Helens in Washington State erupted violently in 1980. The Loma Prieta earthquake in California occurred in 1989. How far apart are these two points on a map? (You can measure it by using google map/earth). Was there a possible connection between these two events? List reasons there might be, and there might not be, a connection.

Answer 1

1. Yes the earth will look like same as today. With in 3 decades the shape of the earth may not go for so many changes. Because of as given one place mountains start building and other side those will erode same way geo dynamic processes keep the earth crust stable due to the subduction at trenches and new crust formation at ridges. Due to the frequent or repeated actions the earth will look like a same as today in 2050.

2. The distance between Mount St. Helens in Washington State erupted violently in 1980. The Loma Prieta earthquake in California occurred in 1989. points is 1230km. I think there may be no connection between these two events.

Because Mount St. Helens in Washington State formed along the Juan de Fuca plate due to this plate subducting with North American plate. Loma Prieta earthquake in California located on San Andreas Fault. Because of different plate boundaries there may be no connection between two events and the distance is 1000 more km for two events and the time period between two events is 9 years. So I am thinking two events have no connection.

Generally subucting plate volcanic events ate common and at transform fault boundary earthquakes are common due to more energy buildup. So these events are naturally occurring events because of their plate boundaries characteristics.