EBK LIVING IN THE ENVIRONMENT
19th Edition
ISBN: 9781337516082
Author: Miller
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 11, Problem 2CR
To determine
The key concept for Section 11.1. The extent up to which an individual knows about the habitats and species that make up the Earth’s aquatic biodiversity. The three general patterns of marine biodiversity. Six reasons for caring about marine biodiversity. The six major threats to aquatic diversity and ecosystems as summarized by the acronym HIPPCO. Definition of coral bleaching and its causes. The way in which sunscreen lotion harms coral reefs. The state of the world’s mangrove forests, sea-grass beds, and ocean bottom habitats. Define ocean acidification, its causes, its projected harmful effect on ocean life, and the way in which these threats can be reduced.
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Figure 12.7:
A.
B.
A.
B.
C.
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E.
A) List and describe the six stages that led to the formation of Earth.
1. Nebular stage
Gravity caused collapse of a rotating mass of dust and gas.
2. A star forms
3. Planetesimals form
4. The Sun ignites
5. Inner planets
6. Outer planets
B) What does the presence of banded iron formation tell us about conditions in the early atmosphere and oceans? (Short answer , couple of sentences)
C)What does the sediment core from Walvis Ridge, southern Atlantic Ocean, from 55-56 million years ago tell us about past climate? (Short answer , couple of sentences )
Chapter 11 Solutions
EBK LIVING IN THE ENVIRONMENT
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- Activity 12.3: Wave Refraction Pgs 202-203Figure 12.2 is a map view of a headland along a coastline. The water depths are shown by blue contour lines. As you complete the following questions, assume that waves with a wavelength of 60 feet are approaching the shoreline from the bottom left of the figure. 1. At approximately what water depth-10, 20, 30, or 40 feet-will the approaching waves begin to touch bottom and slow down? (Hint: Recall that this occurs when the water depth is one-half the wavelength.) 2. Using the wave shown in Figure 12.2 as a starting point, sketch a series of lines to illustrate the wave refraction that will occur as the wave approaches the shore by following these steps:Step 1: Mark the position on the 30-foot contour line where the wave front will first touch bottom.Step 2: Knowing that the section of the wave that touches bottom will slow down first, sketch the shape of the wave front when it reaches the 20-foot contour line.Step 3: Using the same…arrow_forwardCan trace and tell me how they did itarrow_forwardCan someone show me how they would trace thisarrow_forward
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