What's the definition of a landscape

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

At which point on the diagram do convection currents occur to drive plate movement?

Why is the indus river so important to the people of pakistan?