SCIN 138 Week 4 Exam

SCIN 138 Week 4 Exam | Assignment Help | american-public-university-system

Week 4 Exam

Question 1 of 25

 

Which of the following is true of some sedimentary rocks?

 

  A. They form as a result of volcanic processes.

  B. They form as a result of intense heat and pressure

  C. They form as a result of weathering and melting.

  D. They form as the result of precipitation from water.

  E. They form as the result of precipitation from the atmosphere.

 

 

Question 2 of 25

Put the following in the order in which they can occur: erosion, transport, weathering, compaction, burial, cementation, sedimentary rock.

 

  A. weathering, erosion, transport, deposition, burial, compaction, cementation, sedimentary rock.

  B. erosion, transport, weathering, compaction, deposition, burial, cementation, sedimentary rock

  C. weathering, erosion, transport, deposition, compaction, burial, cementation, sedimentary rock

  D. erosion, weathering, transport, deposition, burial, compaction, cementation, sedimentary rock

 

 

Question 3 of 25

Which of the characteristics of sedimentary rocks deals with the grains being the same size?

 

  A. sorting.

  B. roundness

  C. porosity

  D. cementation

 

 

Question 4 of 25

What is the classification of this sedimentary rock?

 

 

  A. biochemical

  B. chemical

  C. organic

  D. clastic

 

 

Question 5 of 25

What is the classification of this sedimentary rock?

 

  A. Chemical.

  B. clastic

  C. biochemical

  D. organic

           

 

Question 17 of 25

Which of the following locations would experience the most weathering?

 

  A. a cold dry climate

  B. a warm wet climate.

  C. a warm dry climate

  D. climate has no effect

 

 

Question 18 of 25

Which force is responsible for the greatest amount of erosion?

 

  A. water

  B. gravity

  C. wind

  D. ice

 

 

 

Question 19 of 25

Which type of weathering is responsible for changing the composition of the rock?

 

  A. expansion

  B. mechanical

  C. physical

  D. chemical

 

 

Question 20 of 25

What is the most likely cause of a sediment with highly rounded grains?

 

  A. Longer distance transported

  B. Stronger bedrock

  C. Shorter time since weathering

  D. Lack of water in environment

  E. Higher temperatures in environment

 

Question 21 of 25

What is the correlation between surface area and rate of weathering?

 

  A. There is no relation between surface area and weathering.

  B. The greater the surface area, the more the rock is exposed so the faster the weathering.  

  C. The greater the surface area, the softer the rock which speeds up weathering.

  D. The greater the surface area, the bigger the rock so weathering is slowed down.

 

 

 

Question 22 of 25

What do chemical and detrital sedimentary rocks have in common?

 

  A. Both involve water in their formation

  B. Both made by organisms

  C. Both come from older bedrock

  D. Both made by erosion.

  E. Both have rounded grains

 

 

 

 

 

Question 23 of 25

Which of the following depositional environments is most likely to form fine-grained mud?

 

  A. Lacustrine.

  B. Aeolian

  C. Glacial

  D. Submarine fan

 

 

Question 24 of 25

Detrital sedimentary rocks are defined and named based mainly on their _______________, while chemical sedimentary rocks are defined mainly on their ____________.

 

  A. grain size, roundness

  B. composition, roundness

  C. composition, grain size

  D. grain size, composition.

  E. roundness, hardness

 

 

 

Question 25 of 25

Which of these soil horizons is closest to bedrock in appearance?

 

  A. B Horizon

  B. subsoil

  C. topsoil.

  D. substratum