The Westphalian system led to the development of
A. factories
B. steam engines
C. nation-states
D. Gothic architecture
C. nation-states
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The energy efficiency of buildings can be improved by all of the following strategies except
a. building big windows into the northern side of new housing b. replacing standard windows with energy efficient windows c. plugging leaks d. using energy-efficient lighting e. using energy-efficient appliances
Three sites (L1, L2, L3) record earthquake magnitude and earthquake intensity for the same earthquake. L1 is located closest to the focus and L3 is farthest away. Where is the intensity greatest, and what happens to the earthquake magnitude calculated at the different sites?
Three sites (L1, L2, L3) record earthquake magnitude and earthquake intensity for the same earthquake. L1 is located closest to the focus and L3 is farthest away. Where is the intensity greatest, and what happens to the earthquake magnitude calculated at the different sites?
- Intensity is greatest at L1; calculated magnitude is the same at each site.
- Intensity is greatest at L1; calculated magnitude decreases with distance from the focus.
- Intensity is greatest at L3; calculated magnitude is the same for each site.
- Intensity is greatest at L3; calculated magnitude decreases with distance from the focus.
Some students on a biology field trip were sitting around watching honeybees. Some of the students noticed that bees spent more time on some flowers than on other flowers. As they talked about this behavior, the students offered various explanations
Some thought that the bees were avoiding predators on some flowers, while other students suggested that some flowers may have sweeter nectar. These speculations about bee behavior are examples of ________. A) data B) bias C) hypotheses D) theories
Satellite observations show Arctic ________
A) animals will do better as the ocean warms B) sea ice is drifting to lower and lower latitudes C) vegetation is getting more sparse because of warming temperatures D) air pollution is the direct cause of warming in the region E) glacial ice is now undergoing more extreme melting then decades ago