1. This statement is false.
Explanation: It is not easy to draw an absolutely correct map of the world because of the spherical shape of the Earth. A number of factors such as size and angle need to be perfect to represent the exact shape of the Earth.
2. This statement is true.
Explanation: A large-scale map can be used to depict even a small area of the Earth. Such a map can provide the minutest details of any place.
3. This statement is true.
Explanation: Signs and symbols used on a map are called conventional symbols. Conventional symbols depict various features such as railway lines, bridges, roads and poles.
4. This statement is true.
Explanation: A map without a scale is called a sketch. A sketch is the blueprint of the final map.