1. Mars has a thin athmosphere
2. Its red colour is dues to a big number of iron oxide
3. It has two moons
4. Olympus Mons, a volcano on Mars is also the largest volcano in the solar system
5. Mars is visible from Earth with a naked eye
6. It has around half the diameter of earth
7. Mars is less dense than Earth
The four tools mapmaker use are:
Direction
Legend
Title
Diagram
Answer:
there is 7.8 billion people in the world right now
Explanation:
