Firework light up the night sky and sometime shake the ground with their explosions the the explosion noises are an example of what type of energy

In fireworks, the explosion noises are the result of the chemical energy transformed into kinetic energy.

Explanation:

There are three forms of energy produced in Fireworks: sound, light and heat. That loud sound we hear after the explosion is the result of quick release of energy.  

The firecracker contains chemical 'potential energy' that is released when it is lighted. This energy is converted to kinetic energy, when the firecracker explosion happens. Kinetic energy sends the firecracker in the sky. Chemical energy compresses the air which produces the sound. Lastly, 'radiant energy' is released when it is transmitted into light in the sky.

the service industry in the united states grew in the late 1800s. what was one effect of that growth?

the number of people with jobs in factories as unskilled workers decreased.

the number of people with jobs in factories as unskilled workers increased.

the middle class grew as people took jobs as clerks, lawyers, and teachers.

the middle class shrank as people left jobs as clerks, lawyers, and teachers.