Explain why it is important not to base opinions of global warming on a specific weather event, such as an extremely cold winter in North America. Provide examples to support your answer
What will be the ideal response?
ANSWER: Global warming in any given year is small, and only becomes significant when averaged over many years, such as decades. So it is important not to base global warming on a specific weather event. For example, a January cold wave across eastern North America in 2014 sent temperatures plummeting. Atop Mount Mitchell in North Carolina, a low temperature of –31°C (–24°F) was the second coldest reading ever observed there. Binghamton, New York, dipped below 0°F on ten days, the most ever recorded there in January. Yet at the same time, it was the third warmest January on record in California, and globally, January 2014 was the fourth warmest on record. (Note that the United States only represents about 2% of the entire surface area of the planet, so one cannot use United States conditions alone as an index of how much the entire world is warming.)
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Which numbered feature on this figure is critical to enable a rock slide to start?
A) 1, a linear or curved scar marking where the slide pulled away from the hill
B) 2, small fractures within the sliding block
C) 3, layers, fractures, or some other discontinuity inclined downslope
D) 4, the front of the slide, where it overruns the land surface
E) 5, a valley or other open space in front of the slide
What activity should you complete prior to beginning any study session?
Turn your stereo to soft classical music Set study goals to be reached at each session Change all lightbulbs to incandescent bulbs with less than 60 watts Select a study partner with similar study habits
Various protuberances, such as rocks, bushes, and ledges, made it easier for the climber to get up the wall.
The aurora borealis:
A) is a different type of physical phenomenon than the aurora australis. B) gains its energy from sunlight reflected from Earth. C) is typically strongest near the equator. D) emits light as electrons move from higher orbits around the nucleus to lower ones.