What are isotherms? What is the average July temperature at Lake Chad?

1.What are isotherms? 2.What is the average July temperature at Lake Chad? 3.What is the average January temperature in the Orange River basin? 4.What does the red and black numbers near the city mean on the map? 5. Where does the continent receive the most precipitation? 6.Where is the least precipitation?

1) Isotherm – a line on a geographic map that connects points with the same temperature. 2) about +26. 3) Average temperature from +12 to -17. 4) Not an entirely accurate question. 5) On the territory of the equator. 6) Atacama Desert.