They show all or part of earth.
<u>Explanation:</u>
Maps are the pictorial representation of earth. The people who draw maps are called cartographers and the maps are represented usually as 2D images. A map of earth gives an idea about the differences in sizes of the countries of the world and various geographical features.
A map usually uses a scale which gives an idea about the relationship between distances on the map and actual distance on earth. Scales can be of different types like verbal scale, representative fraction, graphic scale etc.
Please link the graph into this question
the conservation of matter is when matter cannot be created or destroyed.
