World Geography
The length of the tropical years (the time interval between successive occurrences of the spring equinox) is decreasing very slowly as a result of

both (a) and (b)
None of these
small, progressive changes in the earth's rotational speed
small, progressive change in earth's orbit around the sun

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World Geography
What is the name given to describe the characteristic warmth of both the atmosphere and surfaces in cities compared to their surroundings?

Smart City
Out Growths
Urban Agglomeration
Urban Heat Island

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