Earth

76. Which of the following is NOT a type of sedimentary rock?
A) Sandstone
B) Limestone
C) Shale
D) Granite

77. What is the name of the process by which rocks are physically broken down by plants or animals?
A) Erosion
B) Weathering
C) Deposition
D) Biogenic weathering

78. Which of the following is a type of metamorphic rock that forms from sandstone?
A) Marble
B) Quartzite
C) Gneiss
D) Schist

79. Which of the following is a type of rock that forms from the alteration of existing rock due to heat and pressure?
A) Igneous
B) Sedimentary
C) Metamorphic
D) None of the above

80. What is the name of the layer of the Earth’s atmosphere that contains the ozone layer?
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere