Q: Which of the following is a crucial piece of evidence supporting scientists' theory of how the continents and the ocean basins formed?
A: Currents redistribute heat in an unevenly heated liquid.
Q: Roger poured water over a pile of sand. Some of the sand washed away. This process is similar to which of the following?
A: The erosion of the walls of a canyon
Q: What happens at the boiling point of a substance?
A: liquid becomes a gas
Q: The change from day to night on Earth can be explained by
A:
the rotation of Earth.