1. What are some natural disasters that change Earth’s surface? 2. What is lava made of? What does this say about what is inside the earth?

3. What causes an earthquake?

4. How do you think mountains are formed?

5. Take a look at a world map, are there any continents that might fit together?

6. Why is it important that scientists study tectonic plates?

What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.