Irregularities in coastal outlines are due, in part, to differences in the way shoreline materials erode. What causes these differences?
What will be an ideal response?
The differences in how shoreline materials erode can be attributed to different rock strength, different degrees of consolidation among sedimentary deposits and rocks, the extent of fractures, joints, and faults along which outcrops disintegrate under wave attack, and the presence or absence and orientation of bedding or foliation planes in the rock.
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How does a seismograph work?
A) Sensitive triggers record digital signals and change them into binary so computers can analyze the data. B) Fluid-filled sensors register shaking signals and feed them to recorders. C) Rotating drums are marked by pens when Earth shakes. D) Infrared movement sensors are wired to an inverter that changes the signals to binary so computers can analyze the data.
The Köppen classification uses all of the following criteria to classify climates EXCEPT:
A) mean monthly precipitation. B) mean annual precipitation. C) mean monthly humidity. D) mean monthly temperature.
Why are waterfalls common in a previously glaciated terrain? Why are lakes very common in previously glaciated regions?
What will be an ideal response?
Approximately 125,000 years ago, temperatures were warmer than current temperatures, yet atmospheric CO2 were lower than present. How do scientists account for this lower-than-expected atmospheric CO2 concentrations?
A) Much higher photosynthetic activity due to differences in plant life. B) Dilution of atmospheric CO2 by large inputs of water vapor from increased evapotranspiration. C) Absorption of excessive CO2 by oceans. D) Linking the higher temperatures to causative factors other than CO2 concentrations. E) Scientists do not account for the difference, indicating that anthropogenic climate change is a hoax.