51. Which of the following best describes the lithosphere?
a) The part of the Earth’s interior composed of molten rock
b) The part of the Earth’s atmosphere that contains the ozone layer
c) The solid, outermost layer of the Earth that includes the crust and uppermost mantle
d) The portion of the Earth’s surface covered by water
52. What is the most abundant element in the Earth’s crust by weight?
a) Silicon
b) Oxygen
c) Carbon
d) Iron
53. What type of rock is formed by the compaction and cementation of sediment?
a) Igneous rock
b) Metamorphic rock
c) Sedimentary rock
d) None of the above
54. What is the process by which rock is broken down into smaller pieces?
a) Erosion
b) Weathering
c) Deposition
d) Lithification
55. Which of the following is not a type of rock?
a) Basalt
b) Granite
c) Shale
d) Oil
