Categories
Earth and Space Exploration

List the three common types of radioactive decay as described in the chapter 11 voice-over presentation.

Questions to Answer:
Define “Catastrophism” and “Uniformitarianism”. Who developed the principle of uniformitarianism according to the Chapter 11 voice-over presentation?
Distinguish between relative dating and numerical (absolute) dating of rock formations.
List the three common types of radioactive decay as described in the Chapter 11 voice-over presentation.
What are the four main subdivisions (columns) of the geologic time scale?

Categories
Earth and Space Exploration

What are the three primary factors that effect the viscosity/behavior of magma and thus the violence of a volcanic eruption?

Questions to Answer:
What is viscosity as defined in the Chapter 9 voice-over presentation?
What are the three primary factors that effect the viscosity/behavior of magma and thus the violence of a volcanic eruption?
What three types of materials are associated with volcanic eruptions
List and define each of the three major types of volcanoes and give one example of each.

Categories
Earth and Space Exploration

Name three factors that help determine the strength of shaking during an earthquake.

BOOK:Natural Hazards and Disasters 5th by Hyndman https://drive.google.com/file/d/1dwWU0UdVEy9CnW0m8…
Critical thinking requires an objective analysis and evaluation of the content in order to form a judgment. You should not summarize – you should think and respond critically. In this respect, you may use examples from the everyday life or taken from sources other than the textbook (as long as you properly cite them). Chapter 1
What responsibility does the government have to ensure that its citizens are safe from natural hazards? Conversely, what freedom should individuals have to choose where they want to live?
Chapter 2
Explain the role of Earth’s material densities with respect to Earth’s features such as mountains and mid-oceanic ridges. For example, why is the top of basaltic crust below sea level while the surface of granitic crust is generally above sea level?
Chapter 3
Name three factors that help determine the strength of shaking during an earthquake. What combination of factors would produce the most intense shaking?
Chapter 5
Because both permanent residents and visitors occupy such hazardous areas and thousands of people from inland cities visit the same coastal areas, who should pay for the costs of mitigation or removal?
Chapter 6
Compare the nature of eruption forecasts and associated response activities to those for earthquakes. How are they different and why?
Chapter 8
Landslides often occur on gentle slopes on the flanks of valleys away from mountainous terrains. What are the main factors that contribute to such landslides and what can be done to prevent or stop such movement?
Chapter 10
Drought is often thought of as a weather phenomenon, over which we have no control. In what ways do humans sometimes contribute to the development of drought in a region?
Chapter 11&12
Some skeptics argue that increases in atmospheric greenhouse gases are natural rather than human caused. What evidence would you provide to show that these increases are a result of human activities?
Some people advocate conservation of energy by better insulating houses, using less heat and air conditioning, and turning off lights and electric devices when not in use. How important is this and how likely are people to go along with such conservation measures?
Chapter 14
People should not build homes on floodplains because of the danger of flooding. What are better uses for floodplains?
Chapter 16
How is climate change expected to affect hurricane damage? How should this play a role in the discussion of costs to reduce carbon emissions?

Categories
Earth and Space Exploration

Learning Goal: I’m working on a earth and space exploration question and need an

Learning Goal: I’m working on a earth and space exploration question and need an explanation and answer to help me learn.In this assignment you will use your inclinometer to find the height of a building, a tree, and a telephone pole. Something similar can be done to find diameters of planets.You are going to find the angle between the horizon and the top of the building. Do it the same way you found the elevation of the Sun. Point the edge of the protractor at the top of the building and read off the degree mark under the string. Then use that degree mark to calculate the elevation of the top of the building. Just like you did for the Sun.Let’s say the angle is 35 degrees. The height of the building equals the sine of 35, times the distance to the building, thus: height = tangent (35) x distance.The tangent is an example of a trig function. Those of you who have taken algebra II are acquainted with trig functions (for better or worse). You don’t need to know what they are in order to do this project.I will calculate the tangent of a range of angles for you:tangent 10 = 0.176tangent 15 = 0.268tangent 20 = 0.364tangent 25 = 0.466tangent 30 = 0.577tangent 35 = 0.700tangent 40 = 0.839tangent 45 = 1.045 degrees is the largest angle I want you to use. If your angle is bigger than 45, back up. Adjust your distance from the building until the angle from the horizon to the top of the building is one of the numbers in the list. 25 or 30, for example, rather than 28.To calculate the height of the building, you also need the distance to the building. The most accurate method to get the distance is to use a tape measure. If not that, you could measure the length of your shoe, and walk heel to toe from your angle-measuring position, to the building, counting the little baby steps. Multiply the length of your shoe by the number of baby steps to get the distance to the building. Worst of all, you can measure the length of a full stride, and count the steps to the building. The more accurate your distance to the building, the more accurate the calculated height.Example:The measured angle between the horizon and the top of the building is 35 degrees. The length of my shoe is 11 inches. After measuring the angle, I walked 90 baby steps to the building. 90 x 11 inches = 990 inches. 990 inches / 12 inches per foot = 82.5 feet. h = tangent (35) x dh = 0.700 x 82.5 feeth = 57.8 feet57.8 feet is actually how high the top of the building is above your eyeballs. How high is the top of the building above the ground? You figure it out.Do this two more times, for a tree, and for a telephone pole.Show all arithmetic operations, or NO CREDIT. Plus, I can’t give you feedback if I can’t see what you did.
Requirements: 3 answers with proof of correct work

Categories
Earth and Space Exploration

Learning Goal: I’m working on a earth and space exploration project and need an

Learning Goal: I’m working on a earth and space exploration project and need an explanation and answer to help me learn.One of the major themes of SIO 10 is that Earth is a dynamic system that is perpetually in a state of change. For your final project, you will use Google Earth to document the recent evolution of some of the fastest-changing landforms on our planet: the glaciers on the Pacific coast of Alaska. Many of these glaciers flow all the way to the ocean, some terminate on land. Almost all of them have experienced major changes over the past decades. To do this assignment, you will have to be familiar with the “Historical Imagery” functionality of Google Earth Pro. There are plenty of YouTube tutorials (e.g. ) to help you with this, at a cost of 5-10 minutes of your time.For this assignment:1.) Explore several glaciers (your choice) on the Pacific coast of Alaska, using the Historical Imagery slider to move back and forth in time. By doing this, you’ll develop intuition about what glaciers look like when they are advancing (moving downslope or outward) or retreating (moving upslope or inward) over time. Look in particular for changes between brown/black (rock), blue/green (water), and white (ice) as you click through the timeline. Also click on “Terrain” and pan/tilt your view so you can get an idea of the 3-dimensional shape and the elevation change associated with these glaciers.2.) In the “Layers” section at the bottom-left of your Google Earth window, click to turn on “Google Earth Community” under the “Gallery” menu. This will cause an “i” icon to appear over each major glacier. Clicking on an “i” will show the name of the glacier beneath it.3.) Find a named glacier that shows a lot of change (either advance or retreat), and which has at least three historical images going back 15 years or more. Take a screenshot or export the Google Earth image of each historical image, being sure to write down the image date (month/year) from the time slider. Also write down the geographic coordinates (latitude and longitude) of the glacier, which you can find at the bottom of the Google Earth window.4.) Create and post to Canvas a PDF with:your name and PID
the name and geographic coordinates of your glacier
at least three images of the glacier over time, along with the date of each image.
no more than a half-page of text with A.) a description of the changes you notice between images and B.) your assessment of whether the glacier is advancing or retreating (you should explain your reasoning).
You should start on #1/#2 early in case you have any difficulty finding the Alaskan glaciers or using the timeline.What you are doing in this assignment is a mini science research project: choosing a location of interest to you and using a primary data source to learn something about our planet.

Categories
Earth and Space Exploration

Learning Goal: I’m working on a earth and space exploration test / quiz prep and

Learning Goal: I’m working on a earth and space exploration test / quiz prep and need an explanation and answer to help me learn.This exercise substitutes for the extra credit field trip. You will watch a series of YouTube videos showing waves in different locations and interpret wave models from the Coastal Data Information Program (CDIP). You will answer questions based on what you see in the each video and wave model. You may need to watch the videos on a reasonably large screen (not a cell phone) to see enough detail to answer some of the questions.

Categories
Earth and Space Exploration

Name three factors that help determine the strength of shaking during an earthquake.

Learning Goal: I’m working on a earth and space exploration writing question and need an explanation and answer to help me learn.
BOOK:Natural Hazards and Disasters 5th by Hyndman https://drive.google.com/file/d/1dwWU0UdVEy9CnW0m8…
Critical thinking requires an objective analysis and evaluation of the content in order to form a judgment. You should not summarize – you should think and respond critically. In this respect, you may use examples from the everyday life or taken from sources other than the textbook (as long as you properly cite them).
Chapter 1
What responsibility does the government have to ensure that its citizens are safe from natural hazards? Conversely, what freedom should individuals have to choose where they want to live?
Chapter 2
Explain the role of Earth’s material densities with respect to Earth’s features such as mountains and mid-oceanic ridges. For example, why is the top of basaltic crust below sea level while the surface of granitic crust is generally above sea level?
Chapter 3
Name three factors that help determine the strength of shaking during an earthquake. What combination of factors would produce the most intense shaking?
Chapter 5
Because both permanent residents and visitors occupy such hazardous areas and thousands of people from inland cities visit the same coastal areas, who should pay for the costs of mitigation or removal?
Chapter 6
Compare the nature of eruption forecasts and associated response activities to those for earthquakes. How are they different and why?
Chapter 8
Landslides often occur on gentle slopes on the flanks of valleys away from mountainous terrains. What are the main factors that contribute to such landslides and what can be done to prevent or stop such movement?
Chapter 10
Drought is often thought of as a weather phenomenon, over which we have no control. In what ways do humans sometimes contribute to the development of drought in a region?
Chapter 11&12
Some skeptics argue that increases in atmospheric greenhouse gases are natural rather than human caused. What evidence would you provide to show that these increases are a result of human activities?
Some people advocate conservation of energy by better insulating houses, using less heat and air conditioning, and turning off lights and electric devices when not in use. How important is this and how likely are people to go along with such conservation measures?
Chapter 14
People should not build homes on floodplains because of the danger of flooding. What are better uses for floodplains?
Chapter 16
How is climate change expected to affect hurricane damage? How should this play a role in the discussion of costs to reduce carbon emissions?