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[Oceans] Currently, sea level is rising about 0.31 cm/year. Since the disappearance of the last remnants of the North American (Laurentide) Ice Sheet 7,000 years ago, sea level has risen 4 meters (purple box). How does this historical rate (4 meters of rise over 7,000 years) compare to the current rate of sea-level rise (0.31 cm/year)?

[Metamorphism] The graph below is similar to the graph you used in the last two questions, except instead of showing the facies, it shows the grade of metamorphism and the likely minerals formed at each grade. The graph advances from low-grade metamorphism in the upper left to high-grade metamorphism in the lower right. Use the graph to answer the following question: If you started out with a basalt protolith and subjected the rock to high-grade metamorphism, which of the following minerals would you likely produce?

Which of the following are examples of connective tissue. Click all that apply.

[Ocean and Coastal Processes ] Thermohaline circulation can explain some of the surface currents we see in our oceans, but it does not explain the prevalence of gyres (large, circular currents). What causes gyres to form?

[Earth’s Atmosphere]  Atmospheric concentrations of minor gases are often given in ppm (parts per million). For example, carbon dioxide is reported at 415 ppm. What does this concentration look like? Select the image below that best approximates a concentration of 415 ppm.

[Earthquakes] In this activity, we will use data from three seismic stations to determine the epicenter of the earthquake. We will use this interactive map to answer the remaining questions in this Guided Learning Exploration. [Earthquakes] Step 1. Select “Interactivity.” For the three seismic stations, select Kansas City as the red city, Charlotte as the green, and Birmingham as the blue. Then select “Accept.” Step 2. Select Kansas City and then drag the green line to where the S-wave arrives (shown on image below). The difference in time between the P-wave (yellow line) and S-wave (green line) is the S-P interval. Then select “Accept.” What is the S-P interval for the earthquake as recorded by the Kansas City, MO, seismic station?

[Relative and Numerical Dating] The following cross section shows several stratigraphic layers and the types of fossils found within each layer. Place the fossils in order of oldest to youngest, based on when each fossil first appears in the rock record.

[Relative and Numerical Dating] Let’s look at a simple cross section. Here we see where a dike has intruded into some sediments. Using the principles of relative dating, label the five rock units from the oldest (1) to the youngest (5). If this is completely new to you, check out this interactive animation for a full explanation. RELATIVE AGE DATING

[Earthquakes] Brittle deformation results in faulting. The type of fault produced depends on the type of stress applied to the rock. In the animation below, select the “Types of Faults” menu and watch each part. Use the information from it to label the four images below with the appropriate name for the type of fault shown. “Types of Faults”

[Earthquakes] Rocks deform in response to applied stress. Deformation is usually either brittle or ductile. Earthquakes occur when rocks deform in a brittle fashion. Select the images below that represent brittle deformation.