Porque se hizo el trueque?

Debido a la falta de dinero, el trueque se hizo popular en la década de 1930 durante la Gran Depresión. Fue utilizado para obtener alimentos y otros servicios. Se hizo a través de grupos o entre personas que actuaron de manera similar a los bancos. Si se vendiera algún artículo, el propietario recibiría crédito y se debitaría la cuenta del comprador.

Explanation:

English:

Due to lack of money, bartering became popular in the 1930s during the Great Depression. It was used to obtain food and various other services. It was done through groups or between people who acted similar to banks. If any items were sold, the owner would receive credit and the buyer's account would be debited.

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 : -

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;