#1. a decline in the number of u. s. manufacturing jobs was in part the result of globalization/ biotechnology/ superstations/ #2. an increase in which of the following areas created a decline in labor union membership? service industry/ steelmaking/ automobile manufacturing/ coal mining

#1 is "globalization." The increase in the number of jobs available in other countries and continents allowed for people to relocate to find well-paying employment. This lowered the number of jobs available in the US. #2 is "service industry," since many service industries are not as likely to be unionized as manufacturing jobs.

Which one is the underlined word?

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.