EBK LIVING IN THE ENVIRONMENT
19th Edition
ISBN: 9781337516082
Author: Miller
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 4, Problem 9CR
To determine
The definition of extinction. The definition of endemic species and the reason why they are vulnerable to extinction. The definition and difference between the background extinction rate and a mass extinction. The number of mass extinctions that the Earth has experienced. One of the leading causes of the increasing rate of extinction. The reason why the monarch butterfly is threatened with extinction.
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44) In periglacial environments, the layer of ground that thaws every summer and freezes every winter is called
A) frost layer
B) permafrost
C) active layer
D) discontinuous permafrost
Use the attached piezometer map to make your own, clean version of the map, and indicate the elevation of the water table at all piezometer locations.
Draw equipotential lines (lines of equal water table elevation) using regular intervals – creating a contoured map of the water table.
Determine the direction of groundwater flow based on the horizontal gradient. Label the areas of recharge and discharge directly on your map.
Flow lines: Draw flow lines on your water table map. The lines should be at right angles to the equipotential lines and extend from the recharge area to the discharge area.
Hydraulic Gradient, Specific Discharge (Darcy Flux), Average Linear Velocity:
Using your water table map, estimate an average hydraulic gradient between two locations, call them locations A and B, one at the eastern-most and a second at the western-most extent of your dataset (note the north arrow on the map).
Calculate the specific discharge, q, between the two locations. For this calculation…
Calculate all the values of table 1:
Q in (L/day)
Q out (L/day)
Residence time (days)
Please show all steps
Chapter 4 Solutions
EBK LIVING IN THE ENVIRONMENT
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- 41) Alpine glaciers A) are the largest types of glaciers. B) conform to the shape of the landscape. C) cover large sections of continents. D) show no relationship with the underlying topography.arrow_forward39) Translatory waves A) are the types of waves located furthest away from the shore. B) are slowed down by friction with the bottom of the ocean. C) move water particles in perfectly circular orbits. D) do not interact with the bottom of the ocean.arrow_forward38) The amount of sediment transported in a river depends on A) the discharge volume of water. B) temperature and precipitation. C) climate and topography. D) the length of the river.arrow_forward
- 45) The roughness layer refers to A) the atmospheric layer where wind has the fastest velocities. B) the layer of active weather between the stratosphere and the surface. C) the shallow layer of nearly still air. D) the layer of the atmosphere where dust storms occur.arrow_forward47) Deflation is the process by which A) wind transports smaller particles leaving behind only larger pebbles and rocks. B) sands are deposited closer to the source area and silts are deposited farther. C) sand dunes migrate downwind as sand saltates up the windward face. D) rocks are worn away by bombardment of particles carried in Windstream.arrow_forward46) In Barchan dunes, the slip face is oriented A) on the convex side of the dunes. B) parallel to wind direction. C) on the concave side of the dunes. D) at varying angles.arrow_forward
- 43) Glacial abrasion is when A) boulders are fragmented into smaller particles under the weight of the overlying ice. B) blocks of rocks are plucked from the underlying bedrock. C) rocks are carried at the base of a glacier and grind away at the underlying bedrock. D) debris fall onto the top of the glacier and are carried down glacier.arrow_forward34) Which of the following is true of soils? A) Soils rich in mineral matter are usually dark in colour. B) They usually require hours or days to form. C) Their development is affected by climate and organisms. D) Their properties are not affected by the type of rock from which they form. E) Older soils usually have fewer horizons than younger soils.arrow_forward44) In periglacial environments, the layer of ground that thaws every summer and freezes every winter is called A) frost layer B) permafrost C) active layer D) discontinuous permafrostarrow_forward
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