Opera history began:

A. with the meetings of the Florentine Camerata.

B. with the first performance of Orfeo ed Euridice by Gluck.

C. when Rameau published La Nuove Musiche.

D. when Lully wrote Armide.

A. with the meetings of the Florentine Camerata

Explanation:

Florentine Camerata was a music and drama group in the 16th century Renaissance Florence . The members included: the theorist Vincenzo Galilei (father of Galileo) and the composer Giulio Caccini. Bardi collaborated with them and other Florentine musicians in court entertainments from 1579 to 1608.

Florence and the Florentine Camerata are famous for the formulation of opera in the realm of music. They developed the stile recitativo which facilitated the development of dramatic music and the opera.

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 : -

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