Problem: Does ""The US economy has been spending too much and borrowing too much for years and the rest of the world depended on the U.S. consumer as a source of global demand."" answer the question "What is one reason for the decline in growth around the world in 2009?"

A: no

Problem: Does "In 1766, Henry Cavendish was the first to recognize hydrogen gas as a discrete substance, by naming the gas from a metal-acid reaction "flammable air"." answer the question "In what year did Henry Cavendish recognize hydrogen gas as a discreet substance?"

A: yes

Problem: Does "On the rim of the mountains, on the plateaus and the plains the economy consists of manufacturing and service jobs whereas in the higher altitudes and in the mountains farming is still essential to the economy." answer the question "What does the economy consist of on the rim of the mountains?"

A:
yes