QUES: Basic sanitation techniques can have a profound effect on the transmission of diarrheal disease. The implementation of hand washing using soap and water, for example, has been experimentally shown to reduce the incidence of disease by approximately 4248%. Hand washing in developing countries, however, is compromised by poverty as acknowledged by the CDC: "Handwashing is integral to disease prevention in all parts of the world; however, access to soap and water is limited in a number of less developed countries. This lack of access is one of many challenges to proper hygiene in less developed countries." Solutions to this barrier require the implementation of educational programs that encourage sanitary behaviours.

By what percentage do educational programs reduce the chance of disease?
What is the answer?
ANS: unanswerable
QUES: Somali art is the artistic culture of the Somali people, both historic and contemporary. These include artistic traditions in pottery, music, architecture, wood carving and other genres. Somali art is characterized by its aniconism, partly as a result of the vestigial influence of the pre-Islamic mythology of the Somalis coupled with their ubiquitous Muslim beliefs. However, there have been cases in the past of artistic depictions representing living creatures, such as certain ancient rock paintings in northern Somalia, the golden birds on the Mogadishan canopies, and the plant decorations on religious tombs in southern Somalia. More typically, intricate patterns and geometric designs, bold colors and monumental architecture were the norm.

In what area of Somalia can one find the tombs decorated with plants?
What is the answer?
ANS: southern
QUES: The Houston area is a leading center for building oilfield equipment. Much of its success as a petrochemical complex is due to its busy ship channel, the Port of Houston. In the United States, the port ranks first in international commerce and tenth among the largest ports in the world. Unlike most places, high oil and gasoline prices are beneficial for Houston's economy, as many of its residents are employed in the energy industry. Houston is the beginning or end point of numerous oil, gas, and products pipelines:

Where does Houston rate in the size ranking of world ports?
What is the answer?
ANS:
tenth