Porosity Question Preview (ID: 56764)
Use Your Knowledge Of Earth Science To Answer All Questions In The Data Set. You Will Need Your Earth Science Reference Tables And A Calculator To Answer Some Of The Questions. Good Luck.
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Water was added to each tube to just cover the sediments and the volumes of water added were recorded. These data can best be used to determine the
a) particle size of the sediments
b) particle shape of the sediments
c) water retention of the sediments
d) porosity of the sediments
If tubes A, B, and C were set up to test for capillarity, the data would show that capillarity is
a) greatest in tube A
b) greatest in tube B
c) greatest in tube C
d) the same for tubes A, B, and C
Which graph best represents the relationship between porosity and particle size for soil samples of uniform size, shape, and packing?
a) A
b) B
c) C
d) D
If a rock is compressed and its volume decreases, how will the rock's density and porosity be affected?
a) Density and porosity will both decrease.
b) Density and porosity will both increase.
c) Density will decrease and porosity will increase.
d) Density will increase and porosity will decrease.
Soil with the greatest porosity has particles that are
a) poorly sorted and densely packed
b) poorly sorted and loosely packed
c) well sorted and densely packed
d) well sorted and loosely packed
Which soil characteristic allows greater amounts of water retention?
a) large-size particles
b) small-size particles
c) high-density particles
d) low-density particles
Which statement best compares the porosity in the three beakers?
a) Beaker A and beaker B have the same porosity, and beaker C has the least porosity.
b) Beaker A and beaker B have the same porosity, and beaker C has the greatest porosity.
c) Beaker B has the greatest porosity, beaker A has less porosity, and beaker C has the least porosity.
d) Beaker C has the greatest porosity, beaker B has less porosity, and beaker A has the least porosity.
The results of the activity should have indicated that approximately equal amounts of water were added to the cups of
a) silt and pebbles, only
b) sand, silt, and pebbles, only
c) pebbles and the mixture, only
d) sand, pebbles, and the mixture, only
Which graph best indicates the general relationship between soil particle size and the amount of water retention by a permeable soil?
a) A
b) B
c) C
d) D
Which characteristic is most likely the same for these particle-filled containers?
a) infiltration rate
b) water retention
c) capillarity
d) porosity
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