The Transcontinental Railroad The transcontinental railroad was built by the Central Pacific and Union Pacific Railroad Companies. Construction began in 1863. The two companies started on opposite ends of the country and built toward each other for seven years. During that time, both companies overcame many struggles. There were weather delays, and holes had to be cut through mountains. When finished, the railroad was 1,912 miles long and connected the country from coast to coast. Transporting passengers and goods was faster, easier, and less expensive by train.

Use the passage to answer the question.
Which details helped you reach that conclusion? Select all that apply.
A. Construction began in 1863.
B. The railroad was built by the Central Pacific and Union Pacific Railroad Companies.
C. During that time, both companies overcame many struggles.
D. Transporting passengers and goods was faster, easier, and less expensive by train.
E. There were weather delays, and holes had to be cut through mountains.
3 / 3
2 of 3 Answered
u get 60 points if correct

explanation:

i believe the primary and secondary sectors

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -