Geography [5 Mark Question Answer]

Advantages :

• It is the most accurate three-dimensional representation of the earth.
• It shows the distribution of continents and oceans accurately.
• Lines of latitude and longitude are marked on a globe.

Disadvantages :

• Only a part of the earth can be seen on a globe, at one glance.
• All details cannot be marked on a globe.
• A globe is difficult to carry around.

Thematic maps shows the distribution of forests, crops, minerals, and industries.
The types of Thematic maps are :

1. Ranged maps.
2. Point density maps
3. Proportional symbol maps
4. Maps with pie or bar charts.
5. Grided maps.

The other two maps are :

1. Political maps show the boundaries of administrative units such as countries, states, and districts. Different types of boundaries are shown with different symbols. They also show the locations of cities, towns, and villages.
2. Physical maps show the landforms and water bodies on the Earth’s surface, such as mountains, plateaus, plains, rivers, lakes, and seas. The different features are shown in different colours.

Plan :

1. A plan is a drawing that shows the horizontal section of a small area or building.
2. It is drawn to the scale.
3. It tells us exactly things are on the ground.
4. It is accurate representation of an area.

Sketch :

1. A sketch is a rough drawing showing the relative locations of a few chosen features of an area.
2. It is not drawn to the scale.
3. It does not show the true shape or size of the features.
4. It is a rough representation of an area.

An aerial photograph and a plan — A plan is a drawing that shows the
horizontal section of a small area or a building. It is drawn to scale. It is useful
because it tells us where exactly things are on the ground.
Aerial photography is a tool for representing the earth or a part of it is aerial photography. Photographs of the earth are taken from a camera mounted on an aircraft, an unmanned drone, or an artificial satellite. In fact, such photographs have been used widely in the preparation of accurate maps.