Glass and Soil Review

If a body is buried at a minimum of 3 feet, which of the following are true? Select all that apply.

• Animals will dig up the body.

• The body is protected from the elements (weather).

• The smell will be obvious.

• There will be increased insect activity.

• There is less oxygen and lower bacterial activity.

What are the different soil textures in order from largest to smallest?

• silt, clay, sand

• sand, silt, clay

• silt, sand, clay

• clay, silt, sand

All of the following are minerals found in sand, but which is the most common?

• Quartz

• Mica

• Feldspar

• Iron

Which of the following correctly describes continental sand? Choose all that apply.

• Found in California

• Composed mostly of black basalt

• Made up of marine organisms

• Composed of quartz, mica, and feldspar

• Dark in color

Answer explanation

Which of the following correctly describes volcanic sand? Choose all that apply.

• Composed mostly of quartz

• Very dark in color

• Little to no quartz present

• Composed mostly of black basalt

• Pink in color

Answer explanation

Which of the following correctly describes skeletal sand? Choose all that apply.

• It is mostly made of quartz

• It is dark in color

• It forms the slowest

• It is made up of marine organisms

• It is found in tropical regions

Answer explanation

Which of the following correctly describes precipitate sand? Choose all that apply.

• Has layers

• Also known as oolitic sand

• Found in volcanic regions

• Develops from minerals dissolved in water

• It is pink in color

Answer explanation

Which of the following is FALSE concerning soil evidence?

• Soil is class, physical, circumstantial, trace, and chemical evidence.

• Soil samples should be taken at the crime scene and 20-25 ft away from the crime scene.

• Soil evidence found on a suspect that is consistent with the crime scene soil evidence proves that the suspect committed the crime.

• It is important to analyze the layers of soil at a potential gravesite.

Which of the following are TRUE concerning soil conditions that will preserve bodies? Choose all that apply.

• Coarse and dry soil causes the tanning of the skin

• Acidic areas cause a tanning of the skin

• Acidic areas cause the skin to become leathery

• Clay soil will keep the body dry allowing it to harden

• Coarse and dry soil causes the skin to become leathery

What type of evidence is soil? Select all that apply.

• circumstantial

• physical

• biological

• trace

• chemical