Credibility of a source is the measure of how reliable a certain source is. Usually, if it comes from a source ending with .com, it may not be credible. If it ends with .org, it is created by a government business.<span />
Unions played a very important role in improving wages, and work conditions. They outlawed child labour, and made work days 8 hours instead of 12. Unions started to improve safety and work conditions. They also worked towards equal pay for women. There is so much more unions have done, these are just a few small examples.
I hope this helps.
The answer is d i am pretty sure
90 percent
Congressional grants provided the significant of the amount
required for the interstate highway system. This system has profoundly impacted
the American economy and contributed significantly to improved economic productivity.
The system encouraged development by making land less expensive and available
to the nation's transportation system.
