What is the governing body that determines if a mission qualifies as an official spaceflight or how spacecraft must be landed, among other matters?

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

Plz me i need a good grade ! 10 government is a government system where all citizens that choose to vote have a say in their government? a: communist b: democratic c: autocratic d: theocracy

Which factors are examples of how technology may have affected the great migration apex