Zoning laws establish_
a. what types of buildings can be built in an area
b. the uses an area of land can be put to
c. who can live in an area
d. the types of business that can occupy a building

Zoning laws establish the uses an area of land can be put.

Option: (b)

Explanation:

Zoning laws and ordinances may affect the parking for customers, access for deliveries, setbacks, the number of employees permitted, and the use of signs.  

These laws have to be considered by business owners or entrepreneurs wishing to expand, set up or relocate business establishments.  

Zoning ordinances are local or municipal laws that organizing the building codes and land usage regulations for properties in a specified area.  

Most of the towns and cities are built by the regions that are zoned for commercial, residential or industrial development, and often these zones are subdivided by additional use restrictions.  

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

it will increase due to the time span