Were the Mogollon people one single tribe or were they divided into different groups?

What best explains why the us government placed restrictions on asian immigration through angel island? many americans did not believe in assimilation. many americans did not approve of the gentleman’s agreement. many americans held nativist or racist views. many americans feared a loss of educational opportunities.

Space is not completely empty. there are small particles in space. what happens when these particles come together?

What is the difference between an independent and a dependent variable?