Question

1. food deserts exist for which of the following reasons? *

mark only one oval.
there is no good transportation to get consumers to grocery stores.
food isnt affordable to city or rural populations.
all of these could create a food desert.

1. the practice of extracting more gas from reserves by pumping water at high pressure is commonly called

mark only one oval.
fracking.
high pressure extraction.
liquid phase extraction.

1. which model of the internal social structure of the city explains that growth develops in a series of sectors?
2. central business district
3. transportation and industry
4. low - class residential
5. middle - class residential
6. high - class residential

mark only one oval.
the concentric model
the sector model
the multiple nuclei model

Explanation:

• For question 2: Food deserts are areas where access to affordable and nutritious food is limited. Lack of transportation to grocery stores (so consumers can't get to places with good food) and food not being affordable (so people can't buy good food even if it's available) are both factors. So all these could create a food desert.
• For question 3: Fracking (hydraulic fracturing) is the process of injecting fluid at high pressure into subterranean rocks, boreholes, etc., to extract more gas (or oil). High - pressure extraction is a very general term and not the specific name. Liquid - phase extraction is a different chemical separation technique.
• For question 4: The sector model of urban social structure (developed by Homer Hoyt) shows that urban growth occurs in sectors (like wedges). The concentric model (by Burgess) has zones in concentric circles around the CBD. The multiple - nuclei model (by Harris and Ullman) has multiple centers of development.

Answer:

1. All of these could create a food desert.
2. fracking.
3. the sector model.