All of the u. s. states, except nebraska, model their legislatures on the federal government in that 49 of the 50 legislatures have an upper and lower house which is known as which of the selections below?

The answer is bicameral legislature.

A bicameral legislature means the legislature consists of two separate legislative chambers (houses). Only Nebraska has a unicameral system, with one chamber only (Nebraska does not have the lower house but the legislators are called senators for historical reason). The unicameral legislature in Nebraska is called Nebraska Legislature.

The smaller chamber is usually called Senate, in 41 states the larger chamber is called House of Representatives, in five Assembly and in three House of Delegates. The smaller chamber usually confirms appointments made by the governor, the larger one initiates taxing legislation.

the answer is

the underground railroad (apocope of the metropolitan railroad) is a system of urban trains located within a city and its metropolitan area. it is characterized for being a massive transport of passengers in the big cities, uniting diverse zones and their environs, with high capacity and frequency and in segregated form to other systems of transport. metropolitan railroads are built underground or on the surface, although most systems use mixed models where sections are combined in both modalities.

1 - as a result, the metro tends to reduce car travel for two reasons: first, due to the greater transfer of users from the car and, second, due to the reduction in the acquisition of cars in homes located in sectors near the stations of the metro.

2 -the metro allows to contribute effectively to the achievement of all the objectives of an urban development policy: it improves the efficiency of the city's economy by reducing travel costs and also generates a higher level of activities in the city center, taking advantage of of the agglomeration economies.

3 -it is a clean means of transport, since it uses renewable energy (usually electricity), taking care of the environment and avoiding excessive pollution.