Rank the cycles covered in order from I being least necessary to 4 being most necessary. Provide an explanation for your ranking.

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

9. the history of life on earth is recorded in

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?