Population Pyramid

1.  A population pyramid, also called an age pyramid or age picture diagram, is a graphical illustration that shows the distribution of various age groups in a population, which forms the shape of a pyramid when the population is growing. 
2.

 3.The top picture shows a population pyramid of a developing country like angola in 2012. The bottom part shows ukraine in 2012.
4.Population pyramids are useful because they show if a population grew or died. 

Repeat Photography

1. Repeat photography is taking a picture of one landscape then take the same photo again at the exact same spot.
2.

3.Repeat photography is useful because we can see changes over time and see if any think happened that we need to take notice.

The Global Positioning System

1. What is the Global Positioning System A navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver

2.

The Global Positioning System

3. They are used for
Navigation
Location
Tracking
Mapping
Timing

Typhoon Haiyan Video-Donate-Article

Map of the Philippines

Typhoon Haiyan recently DESTROYED the Philippines. No one was safe.                            Donate to the Red cross to help.
                      ^^^^^^^^
Here is a Article
              ^^^^^^

Cartograms

1. What is a cartogram? A cartogram is a map on which statistical information is shown in diagrammatic form. They are useful because they tell different stats in different countries.       2.

Nuclear weapons produce

This one shows the world population

I chose these because I want to.