How is the u. s. population changing?
the number of older americans is growing.
women will soon outnumber men by about 2 to 1.
the number of middle-aged people is nearing zero.
fewer immigrants are moving to the u. s.

2. which of the following was invented in the last 10 years?
text messaging
cordless telephones
wireless telephones
answering machines

3. people are able to have international careers because of changes in
global warming.
global communication.
global aging.
global pollution.