Here is a review of the objectives with which we began the unit.

Read a map.

To read a map, use the tools created by geographers, including the map's key, scale, and choice of geographic grid. Lines of longitude and latitude mark the grid.

Explain the system of time zones.

One line of longitude the prime meridian at Greenwich, England—is the reference point for the system of time zones. At each time zone, the time differs by 1 hour, expressed as plus or minus GMT (Greenwich Mean Time). The international date line where the zones meet is 180° from Greenwich in the Pacific.

Differentiate between weather and climate.

Weather is what is happening now. Climate is the sum of weather over a period of time.

Describe how cultural factors influence tourism.

To many people, the diversity of cultures is an incentive to travel. Religion, food, the arts, and recreation are aspects of cultures that are particularly likely to attract tourists. Differences in language, in government regulations, and in ways of handling daily tasks such as driving are among the aspects of cultures that can complicate travel.

Identify sources of information used in planning trips.

Information about every travel destination and product is available electronically. Always be wary of the source. Some online sources reflect opinions, not facts. Both the U.S. and Canadian government provides reliable source information about health and safety. Visit Canada's at and America's at Atlases, dictionaries, guidebooks, travel suppliers, trade associations, and trade and consumer magazines are also important sources.