The answer is atmosphere. In atmosphere air is fluid like
the hydrosphere and which can then go around with heat energy across great
distances (latitudes) Heat can be transferred between air and water easily. Atmosphere Definition is vertical extension
10,000km (50% mass < 6km; 48% mass < 26km). Composition of atmosphere are N, O, Ar,
variable gases (water vapor, carbon dioxide, ozone.
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The correct answer is C) comprise several edge cities with independent business cores.
The modern urban areas have central city and multiple other edge cities around it, even though the central city is the biggest and most influential, all of the edge cities have separate business cores and all institutions needed for an urban area. They are in very close proximity to the central city and are well connected in every department.
The greenhouse gases<span> absorb some of this energy and radiate much of it back towards the surface whilst the rest is radiated out to space. This plays an </span>important<span>role in keeping the </span>Earth's<span> surface warm and able to sustain </span>life<span>.</span>