If u can answer all of these i would be so why do we have hw the last week of school anyway? ? even if u can only answer one or two or three that would still be thx

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

What does 2[tex] {2}^{ - 4} \times {2}^{ - 2} [/tex]

Which two nations are doing the most to combat their environmental issues?