Rock Cycle
Metamorphic rock transforms to sediment by ______________.
A. heat and pressure
B. weathering and erosion
C. melting and cooling
weathering and erosion
What is humus?
A. spaces between soil particles
B. dark, organic material formed in soil
C. weathered rock fragments
B. dark, organic material formed in soil
What is the hardest known mineral?
A. diamond
B. gold
C. ruby
A. diamond
The process by which natural forces move weathered rock and soil from one place to another is called...
A. erosion
B. soil conservation
C. abrasion
erosion
Which of the following responses best explains how fossil fuels form?
A. Buried plants/animals are exposed to heat/pressure & turn into fossil fuels
B. Fossil fuels are made by human processes at a factory.
A. Buried plants/animals are exposed to heat/pressure & turn into fossil fuels
Igneous rock transforms to metamorphic rock by_____________.
A. heat and pressure
B. weathering and erosion
C. melting and cooling
B. heat and pressure
Which of the following is the source of humus found in soil?
A. acid rain
B. parent rock
C. plants and animals
C. plants and animals
Which approach is most useful for analyzing the hardness of each sample?
A. Scrape the sample on a streak plate.
B. Break the sample apart with a hammer.
C. Scratch one sample with another sample.
C. Scratch one sample with another sample.
Name one agent of mechanical weathering.
A. rusting
B. tarnishing
C. animal actions
C. animal actions
What is the source of energy stored in coal?
A. Salt left behind by evaporated ocean water
B. Hard shells compacted on the ocean bottom
C. Remains of swamp plants buried in water
C. Remains of swamp plants buried in water
The three types of rock are...
A. basalt, granite, pumice
B. lava, ocean, fire
C. sedimentary, igneous, metamorphic
C. sedimentary, igneous, metamorphic
In which of the following soil layers is humus mostly found?
A horizon
B horizon
C horizon
A horizon
For which type of mineral should the student expect the greatest luster?
A. a shiny, metallic mineral
B. a dull, chalky mineral
C. a rough, grey mineral
A. a shiny, metallic mineral
The most important factors in determining the rate of weathering are...
A. carbon dioxide and acid rain
B. rock type and climate
C. animal actions and oxygen
B. rock type and climate
Which type of sedimentary rock is formed when rock fragments are squeezed together?
A. chemical rocks
B. clastic rocks
C. organic rocks
B. clastic rocks
Which of the following is the order for forming sedimentary rocks?
A. sedimentation - cementation - compaction
B. compaction - sedimentation - cementation
C. sedimentation - compaction - cementation
C. sedimentation - compaction -cementation
Granite lasts a long time when it is used for building in areas where...
A. acid rain is common.
B. the climate is mostly hot and wet.
C. the climate is mostly cool and dry.
C. the climate is mostly cool and dry.
Which of these characteristics do diamonds share with all minerals?
A. orderly crystal structure
B. extreme hardness
C. rarity and high cost
A. orderly crystal structure
Landslides, mudflows, slump, and creep are all examples of:
A. mechanical weathering
B. chemical weathering
C. mass movement
C. mass movement
Why is petroleum considered to be a nonrenewable resource?
A. It constantly forms within Earth
B. It releases harmful chemicals when burned
C. It requires a long period of time to form
C. It requires a long period of time to form
Where can igneous rocks form?
A. Above ground only
B. Below ground only
C. Both above and below ground
C. Both above and below ground
The type of soil called loam is made up of:
A. pure humus
B. pure clay
C. nearly equal amounts of silt, sand, and clay.
C. nearly equal amounts of silt, sand, & clay.
Which type of sedimentary rock is formed when minerals dissolved in a water solution crystallize?
clastic rocks
chemical rocks
organic rocks
chemical rocks
The process of restoring an area of land to a more natural, productive state is called:
A. erosion
B. nutrient depletion
C. land reclamation
C. land reclamation
Coal is a natural resource. Why is coal considered nonrenewable?
A. Coal will never run out
B. No new coal is being produced on Earth
C. Coal is being used faster than it is being produced
C. Coal is being used faster than it is being produced