16. The Earth’s magnetic field is generated in 

33. Minerals that have the same combination of elements but with different atomic arrangements are called

10.  How does sedimentary rock from the ocean floor sometimes end up in highland and mountainous regions on Earth? 

26. The two most abundant elements in the Earth’s crust are

20. Movement of the lithosphere 

24. What is the primary cause of volcanoes, earthquakes, and mountain building?

3.  Secondary waves can travel through all areas of the Earth except the

8. Mohs scale is defined on the basis of minerals that have different 

23. Color is not a reliable means for mineral identification because

30. The mechanism behind continental drift is