How many times greater is the force of gravity on a 4 kg object lying on the surface of a moon than on a 4 kg object orbiting at a distance of 9 moon radii above the surface?

Which type of map is shown in the image

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

2/6 of be by to 2/6 is to 24/72 ?