Explain why national communication structures are important for economic development
What will be an ideal response?
Answer: The dissemination of information can be as important as the dissemination of goods and materials. The degree to which citizens of a country enjoy access to sources of information can reveal its economic development and political liberty, and it can also promote these two values. The increased intensity of communication accelerates the spread of political and cultural ideas. Access to the Internet is a basic measure of communication infrastructure today. Mobile phones, broadband speed, and personal computer ownership are also meaningful measures of a country's ability to exchange information. Increased access and use of digital communication technology also suggests the increasing importance of new economic activities.
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At what point on the graph does the density of water begin to decrease? ________ The temperature at this point is ________°C.
A) A; -4°C
B) B; 0°C
C) C; 0°C (but higher density)
D) D; 4°C
This thin region near the ground, the ________, is heated by conduction from the earth's surface
Fill in the blank(s) with the appropriate word(s).
Which of the following is NOT a valid explanation of the urban heat island effect?
A) Pollution trapped over a city enhances the greenhouse effect of the atmosphere. B) Urban areas generally have a higher albedo than surrounding rural areas. C) Urban areas retain heat longer and do not cool off as quickly at night as surrounding rural areas. D) Increased runoff on urban surfaces reduces evaporative cooling in the area.
Among cloud types, those that occur at the highest altitudes are the ________
A) cumulus B) altocumulus C) stratus D) cirrus E) stratocumulus