Which method of glacial erosion is responsible for the marks in this image?
A) Abrasion
B) Plucking
C) Quarrying
D) Jointing
Answer: A
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Figure 1.5 is a view of Earth from directly above the North Pole; the equator is the full circumference around the edge. A line has been drawn from the North Pole to the equator and labeled 0°, representing the prime meridian. Earth’s prime meridian through Greenwich, England, was not generally agreed to by most nations until 1884. To the right of 0° on the diagram is the Eastern Hemisphere, and to the left of 0° is the Western Hemisphere.
a) Label both the Eastern Hemisphere and the Western Hemisphere. b) Extend another line from the North Pole to the other side of Earth, opposite the prime meridian, and label it 180°. You now have marked the line that is the International Date Line, which extends from North to South Poles on the opposite side of Earth from the prime meridian. c) Using your protractor, measure, draw, and label the meridians that are 100° east and 60° west of the Greenwich meridian. d) Finally, locate, draw, and label the meridian that marks your present longitude.
Which statement about mitigation of climate change is FALSE?
a. ?The most direct way to slow the increase in greenhouse gases is to minimize population growth. b. ?Conservation is an expensive way to reduce carbon output used in power production. c. ?If the real costs of burning coal are included, the cost of wind energy is similar. d. ?Injecting aerosols such as sulfur dioxide into the atmosphere annually could block some of the sun’s incoming energy. e. ?There is considerable opposition to a carbon tax in the United States.
________ develop where oceanic lithosphere bends downward and sinks into the mantle
A) Rift valleys on mid-ocean ridges B) Submarine canyons C) Abyssal seamounts D) Deep ocean trenches
Food safety issues of transgenic crops include
A) a decreased production of allergens in crops. B) the promotion of antibiotic resistance in pathogens and new allergenic properties in crops. C) interference with the effectiveness of immunizations. D) the development of herbicide resistance in humans.