hi guys
No, pollution did not decrease yet. Hopefully in the future it will though. I actually think that pollution has gotten worst over the years.
pigw4
Agricultural, Industrial, and Information (such as technology)
iran
PA systems as with all other technology has continued to advance in recent years. The most recent advances have been in allowing for Digital PA sytems,with integrated video.
The pollution in Mexico has been an issue for several years. The Mexican government has worked on several plans to fix the problem and the most recent is to eliminate the emissions that contribute to the climate.
it has change by have more feauters and there's more technology now days.
Efficiency - as in maximizing efficiency - is one engineer's plan of attack.
The service part of the economy has grown by leaps and bounds. Technology has also really grown.
No, in fact it will decrease in the next 100 years. It is 19th century technology and it would be like going back to the horse and buggy instead of using the car.
Human Exploitation
As of 2014 a child needs to be 17 before they can drop out of school in the state of Alabama. The age was 16 but was raised in recent years to decrease the rate of dropouts.