In Africa today, the majority of infected people acquire HIV by the time they are in their 20s or 30s and, on average, die within ten years.
Is this true: 20-30 percent of people infected with HIV live in Africa.

A: no

Israeli scientists predict the world's coral reefs could begin to collapse in as little as 30 years from now. Studies show the oceans are becoming increasingly acidic as they soak up manmade emissions of carbon dioxide. The Hebrew University of Jerusalem researchers say this will make it difficult for many coral organisms to produce skeletal and other hard parts. The team's work on corals in the Red Sea suggests a tipping point will be reached in between 30 and 70 years. Then the forces of erosion eating away at corals will outstrip the organisms' ability to make the reefs.
Is this true: The coral organisms are endangered by the acidification of oceans.

A: yes

The Republic of Tajikistan, which declared independence from the Soviet Union in 1991, is in a region that has changed hands many times.
Is this true: The Soviet Union collapsed in 1991.

A: no

In 1997, insurance companies paid out $51.6 billion for prescription drugs.
Is this true: Insurance companies cover prescription drugs.

A:
yes