2. Calderas also form when pyroclast deposits at the summit of the volcano puts weight on to emptied magmatic chamber below causing summit to collapse and caldera to form.

38. Which of the igneous rock below formed from sticky, plastic and squashed hot ash and lapilli mixture?    

45. Which of the following below is NOT an Evaporite? (recall this was also in test 1)  

5. Which of the following mineral below does melt the last (requires high temp to melt)?  

25. During transgression of the sea, sea level ________________  

26. Whenever atoms’ last orbit is not satisfied by the number of electrons that are necessary tor it, the——————-  

40. Rocks are———————————-of minerals (choose at least four correct answers)

10. In which of the plate boundary, the plates move towards one another?  

36. Halite and Gypsum minerals are also known as________________  

24. Nuclei of the atoms consists of electrons and protons