The fact that mountains on separate continents appeared to belong to the same chain of mountains, was evidence that, a long time ago the continents were together. true or false?

What triumphs did the late 19th century witness in the realms of industrial growth, urbanization, and technological innovation? what challenges did these developments pose for urban dwellers, workers, and recent immigrants? how did city officials and everyday citizens respond to these challenges?

3. what was the government’s target population (goal) for 2000?

Why is it important that dr. luther king jr. use non-violent protest to create social change?