Unit 3: Natural Evidence Test Review

What 2 characteristics of soil will be different no matter what samples are used?

• physical and chemical

• chemical and size

• color and size

• physical and color

What are the layers of soil in order?

• subsoil, humas, topsoil, sand & silt, broken rock, solid rock

• humus, topsoil, sand & silt, subsoil, broken rock, solid rock

• humus, topsoil, sand & silt, solid rock, broken rock

• humus, sand & silt, topsoil, broken rock, solid rock

What layers of the ground would be disturbed if you were burying a body?

• humus only

• humus and topsoil

• humus, topsoil, and subsoil

• all layers not made of rock are disturbed

What is changed at a burial site?

• soil profile

• chemical profile

• texture profile

• physical profile

If police found dark sand with high concentrations of black basalt at a crime scene, what soil should they look for?

• volcanic

• skeletal

• preticipate

• continental

Tags

NGSS.MS-ESS2-2

Boot prints had traces of sand that was made of  hornblende and magnetite. What type of sand should police look at?

• volcanic

• skeletal

• continental

• precipitate

Tags

NGSS.MS-ESS2-2

Sand that was found had a large portion of clay and had a high percentage of fragments in them. What age is most likely for this sand?

• mature

• old

• young

• immature

Choose the TRUE statement below.

• Fewer than 20 species of diatoms indicate a longer PMI.

• Fewer than 50 species of diatoms suggest a longer PMI.

• Fewer than 20 species of diatoms indicate a more recent drowning.

• More than 50 species of diatoms suggest a more recent drowning.

Dr. Jane Bock's manual was used to determine what?

• victim's last meal

• postmortem interval

• who the victim last saw

• how long ago the victim ate

Which is NOT an indication of a NEW gravesite?

• site sinks into the ground and settles

• a mound of soil

• absences of vegetation

• CDI (cadaver decomposition island)